Merge git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa

13 files changed, 954 insertions, 927 deletions

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 22f8bb6..a1bd804 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -102,10 +102,6 @@ MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
 #define SYNC_URBS	4	/* always four urbs for sync */
 #define MIN_PACKS_URB	1	/* minimum 1 packet per urb */
 
-typedef struct snd_usb_substream snd_usb_substream_t;
-typedef struct snd_usb_stream snd_usb_stream_t;
-typedef struct snd_urb_ctx snd_urb_ctx_t;
-
 struct audioformat {
 	struct list_head list;
 	snd_pcm_format_t format;	/* format type */
@@ -125,25 +121,27 @@ struct audioformat {
 	unsigned int *rate_table;	/* rate table */
 };
 
+struct snd_usb_substream;
+
 struct snd_urb_ctx {
 	struct urb *urb;
 	unsigned int buffer_size;	/* size of data buffer, if data URB */
-	snd_usb_substream_t *subs;
+	struct snd_usb_substream *subs;
 	int index;	/* index for urb array */
 	int packets;	/* number of packets per urb */
 };
 
 struct snd_urb_ops {
-	int (*prepare)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-	int (*retire)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-	int (*prepare_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
-	int (*retire_sync)(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime, struct urb *u);
+	int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+	int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+	int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
+	int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u);
 };
 
 struct snd_usb_substream {
-	snd_usb_stream_t *stream;
+	struct snd_usb_stream *stream;
 	struct usb_device *dev;
-	snd_pcm_substream_t *pcm_substream;
+	struct snd_pcm_substream *pcm_substream;
 	int direction;	/* playback or capture */
 	int interface;	/* current interface */
 	int endpoint;	/* assigned endpoint */
@@ -175,8 +173,8 @@ struct snd_usb_substream {
 	unsigned long unlink_mask;	/* bitmask of unlinked urbs */
 
 	unsigned int nurbs;			/* # urbs */
-	snd_urb_ctx_t dataurb[MAX_URBS];	/* data urb table */
-	snd_urb_ctx_t syncurb[SYNC_URBS];	/* sync urb table */
+	struct snd_urb_ctx dataurb[MAX_URBS];	/* data urb table */
+	struct snd_urb_ctx syncurb[SYNC_URBS];	/* sync urb table */
 	char *syncbuf;				/* sync buffer for all sync URBs */
 	dma_addr_t sync_dma;			/* DMA address of syncbuf */
 
@@ -190,11 +188,11 @@ struct snd_usb_substream {
 
 
 struct snd_usb_stream {
-	snd_usb_audio_t *chip;
-	snd_pcm_t *pcm;
+	struct snd_usb_audio *chip;
+	struct snd_pcm *pcm;
 	int pcm_index;
 	unsigned int fmt_type;		/* USB audio format type (1-3) */
-	snd_usb_substream_t substream[2];
+	struct snd_usb_substream substream[2];
 	struct list_head list;
 };
 
@@ -205,7 +203,7 @@ struct snd_usb_stream {
  */
 
 static DECLARE_MUTEX(register_mutex);
-static snd_usb_audio_t *usb_chip[SNDRV_CARDS];
+static struct snd_usb_audio *usb_chip[SNDRV_CARDS];
 
 
 /*
@@ -245,12 +243,12 @@ static inline unsigned get_high_speed_hz(unsigned int usb_rate)
  * fill the length and offset of each urb descriptor.
  * the fixed 10.14 frequency is passed through the pipe.
  */
-static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
-				    snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb(struct snd_usb_substream *subs,
+				    struct snd_pcm_runtime *runtime,
 				    struct urb *urb)
 {
 	unsigned char *cp = urb->transfer_buffer;
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	urb->dev = ctx->subs->dev; /* we need to set this at each time */
 	urb->iso_frame_desc[0].length = 3;
@@ -267,12 +265,12 @@ static int prepare_capture_sync_urb(snd_usb_substream_t *subs,
  * fill the length and offset of each urb descriptor.
  * the fixed 12.13 frequency is passed as 16.16 through the pipe.
  */
-static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
-				       snd_pcm_runtime_t *runtime,
+static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs,
+				       struct snd_pcm_runtime *runtime,
 				       struct urb *urb)
 {
 	unsigned char *cp = urb->transfer_buffer;
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	urb->dev = ctx->subs->dev; /* we need to set this at each time */
 	urb->iso_frame_desc[0].length = 4;
@@ -288,8 +286,8 @@ static int prepare_capture_sync_urb_hs(snd_usb_substream_t *subs,
  * process after capture sync complete
  * - nothing to do
  */
-static int retire_capture_sync_urb(snd_usb_substream_t *subs,
-				   snd_pcm_runtime_t *runtime,
+static int retire_capture_sync_urb(struct snd_usb_substream *subs,
+				   struct snd_pcm_runtime *runtime,
 				   struct urb *urb)
 {
 	return 0;
@@ -305,12 +303,12 @@ static int retire_capture_sync_urb(snd_usb_substream_t *subs,
  * write onto the pcm buffer directly...  the data is thus copied
  * later at complete callback to the global buffer.
  */
-static int prepare_capture_urb(snd_usb_substream_t *subs,
-			       snd_pcm_runtime_t *runtime,
+static int prepare_capture_urb(struct snd_usb_substream *subs,
+			       struct snd_pcm_runtime *runtime,
 			       struct urb *urb)
 {
 	int i, offs;
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	offs = 0;
 	urb->dev = ctx->subs->dev; /* we need to set this at each time */
@@ -340,8 +338,8 @@ static int prepare_capture_urb(snd_usb_substream_t *subs,
  * copy the data from each desctiptor to the pcm buffer, and
  * update the current position.
  */
-static int retire_capture_urb(snd_usb_substream_t *subs,
-			      snd_pcm_runtime_t *runtime,
+static int retire_capture_urb(struct snd_usb_substream *subs,
+			      struct snd_pcm_runtime *runtime,
 			      struct urb *urb)
 {
 	unsigned long flags;
@@ -395,11 +393,11 @@ static int retire_capture_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
-				     snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb(struct snd_usb_substream *subs,
+				     struct snd_pcm_runtime *runtime,
 				     struct urb *urb)
 {
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	urb->dev = ctx->subs->dev; /* we need to set this at each time */
 	urb->iso_frame_desc[0].length = 3;
@@ -413,11 +411,11 @@ static int prepare_playback_sync_urb(snd_usb_substream_t *subs,
  * set up the offset and length to receive the current frequency.
  */
 
-static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
-					snd_pcm_runtime_t *runtime,
+static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs,
+					struct snd_pcm_runtime *runtime,
 					struct urb *urb)
 {
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	urb->dev = ctx->subs->dev; /* we need to set this at each time */
 	urb->iso_frame_desc[0].length = 4;
@@ -431,8 +429,8 @@ static int prepare_playback_sync_urb_hs(snd_usb_substream_t *subs,
  * retrieve the current 10.14 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb(snd_usb_substream_t *subs,
-				    snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb(struct snd_usb_substream *subs,
+				    struct snd_pcm_runtime *runtime,
 				    struct urb *urb)
 {
 	unsigned int f;
@@ -457,8 +455,8 @@ static int retire_playback_sync_urb(snd_usb_substream_t *subs,
  * retrieve the current 12.13 frequency from pipe, and set it.
  * the value is referred in prepare_playback_urb().
  */
-static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
-				       snd_pcm_runtime_t *runtime,
+static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs,
+				       struct snd_pcm_runtime *runtime,
 				       struct urb *urb)
 {
 	unsigned int f;
@@ -482,12 +480,12 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs,
  *
  * We don't care about (or have) any data, so we just send a transfer delimiter.
  */
-static int prepare_startup_playback_urb(snd_usb_substream_t *subs,
-					snd_pcm_runtime_t *runtime,
+static int prepare_startup_playback_urb(struct snd_usb_substream *subs,
+					struct snd_pcm_runtime *runtime,
 					struct urb *urb)
 {
 	unsigned int i;
-	snd_urb_ctx_t *ctx = urb->context;
+	struct snd_urb_ctx *ctx = urb->context;
 
 	urb->dev = ctx->subs->dev;
 	urb->number_of_packets = subs->packs_per_ms;
@@ -507,15 +505,15 @@ static int prepare_startup_playback_urb(snd_usb_substream_t *subs,
  * To avoid inconsistencies when updating hwptr_done, we use double buffering
  * for all URBs.
  */
-static int prepare_playback_urb(snd_usb_substream_t *subs,
-				snd_pcm_runtime_t *runtime,
+static int prepare_playback_urb(struct snd_usb_substream *subs,
+				struct snd_pcm_runtime *runtime,
 				struct urb *urb)
 {
 	int i, stride, offs;
 	unsigned int counts;
 	unsigned long flags;
 	int period_elapsed = 0;
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
 
 	stride = runtime->frame_bits >> 3;
 
@@ -597,8 +595,8 @@ static int prepare_playback_urb(snd_usb_substream_t *subs,
  * process after playback data complete
  * - nothing to do
  */
-static int retire_playback_urb(snd_usb_substream_t *subs,
-			       snd_pcm_runtime_t *runtime,
+static int retire_playback_urb(struct snd_usb_substream *subs,
+			       struct snd_pcm_runtime *runtime,
 			       struct urb *urb)
 {
 	return 0;
@@ -642,9 +640,9 @@ static struct snd_urb_ops audio_urb_ops_high_speed[2] = {
  */
 static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
 {
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-	snd_usb_substream_t *subs = ctx->subs;
-	snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+	struct snd_usb_substream *subs = ctx->subs;
+	struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
 	int err = 0;
 
 	if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) ||
@@ -665,9 +663,9 @@ static void snd_complete_urb(struct urb *urb, struct pt_regs *regs)
  */
 static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
 {
-	snd_urb_ctx_t *ctx = (snd_urb_ctx_t *)urb->context;
-	snd_usb_substream_t *subs = ctx->subs;
-	snd_pcm_substream_t *substream = ctx->subs->pcm_substream;
+	struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+	struct snd_usb_substream *subs = ctx->subs;
+	struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
 	int err = 0;
 
 	if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) ||
@@ -684,7 +682,7 @@ static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs)
 
 
 /* get the physical page pointer at the given offset */
-static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
+static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
 					     unsigned long offset)
 {
 	void *pageptr = subs->runtime->dma_area + offset;
@@ -692,9 +690,9 @@ static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs,
 }
 
 /* allocate virtual buffer; may be called more than once */
-static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
+static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, size_t size)
 {
-	snd_pcm_runtime_t *runtime = subs->runtime;
+	struct snd_pcm_runtime *runtime = subs->runtime;
 	if (runtime->dma_area) {
 		if (runtime->dma_bytes >= size)
 			return 0; /* already large enough */
@@ -708,9 +706,9 @@ static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size)
 }
 
 /* free virtual buffer; may be called more than once */
-static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
+static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs)
 {
-	snd_pcm_runtime_t *runtime = subs->runtime;
+	struct snd_pcm_runtime *runtime = subs->runtime;
 	if (runtime->dma_area) {
 		vfree(runtime->dma_area);
 		runtime->dma_area = NULL;
@@ -722,7 +720,7 @@ static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs)
 /*
  * unlink active urbs.
  */
-static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
+static int deactivate_urbs(struct snd_usb_substream *subs, int force, int can_sleep)
 {
 	unsigned int i;
 	int async;
@@ -768,7 +766,7 @@ static int deactivate_urbs(snd_usb_substream_t *subs, int force, int can_sleep)
 /*
  * set up and start data/sync urbs
  */
-static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
+static int start_urbs(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime)
 {
 	unsigned int i;
 	int err;
@@ -824,7 +822,7 @@ static int start_urbs(snd_usb_substream_t *subs, snd_pcm_runtime_t *runtime)
 /*
  *  wait until all urbs are processed.
  */
-static int wait_clear_urbs(snd_usb_substream_t *subs)
+static int wait_clear_urbs(struct snd_usb_substream *subs)
 {
 	unsigned long end_time = jiffies + msecs_to_jiffies(1000);
 	unsigned int i;
@@ -855,12 +853,12 @@ static int wait_clear_urbs(snd_usb_substream_t *subs)
 /*
  * return the current pcm pointer.  just return the hwptr_done value.
  */
-static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream)
 {
-	snd_usb_substream_t *subs;
+	struct snd_usb_substream *subs;
 	snd_pcm_uframes_t hwptr_done;
 	
-	subs = (snd_usb_substream_t *)substream->runtime->private_data;
+	subs = (struct snd_usb_substream *)substream->runtime->private_data;
 	spin_lock(&subs->lock);
 	hwptr_done = subs->hwptr_done;
 	spin_unlock(&subs->lock);
@@ -871,10 +869,10 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream)
 /*
  * start/stop playback substream
  */
-static int snd_usb_pcm_playback_trigger(snd_pcm_substream_t *substream,
+static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream,
 					int cmd)
 {
-	snd_usb_substream_t *subs = substream->runtime->private_data;
+	struct snd_usb_substream *subs = substream->runtime->private_data;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -890,10 +888,10 @@ static int snd_usb_pcm_playback_trigger(snd_pcm_substream_t *substream,
 /*
  * start/stop capture substream
  */
-static int snd_usb_pcm_capture_trigger(snd_pcm_substream_t *substream,
+static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream,
 				       int cmd)
 {
-	snd_usb_substream_t *subs = substream->runtime->private_data;
+	struct snd_usb_substream *subs = substream->runtime->private_data;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -909,7 +907,7 @@ static int snd_usb_pcm_capture_trigger(snd_pcm_substream_t *substream,
 /*
  * release a urb data
  */
-static void release_urb_ctx(snd_urb_ctx_t *u)
+static void release_urb_ctx(struct snd_urb_ctx *u)
 {
 	if (u->urb) {
 		if (u->buffer_size)
@@ -924,7 +922,7 @@ static void release_urb_ctx(snd_urb_ctx_t *u)
 /*
  * release a substream
  */
-static void release_substream_urbs(snd_usb_substream_t *subs, int force)
+static void release_substream_urbs(struct snd_usb_substream *subs, int force)
 {
 	int i;
 
@@ -945,7 +943,7 @@ static void release_substream_urbs(snd_usb_substream_t *subs, int force)
 /*
  * initialize a substream for plaback/capture
  */
-static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_bytes,
+static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int period_bytes,
 			       unsigned int rate, unsigned int frame_bits)
 {
 	unsigned int maxsize, n, i;
@@ -1045,7 +1043,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
 
 	/* allocate and initialize data urbs */
 	for (i = 0; i < subs->nurbs; i++) {
-		snd_urb_ctx_t *u = &subs->dataurb[i];
+		struct snd_urb_ctx *u = &subs->dataurb[i];
 		u->index = i;
 		u->subs = subs;
 		u->packets = npacks[i];
@@ -1074,7 +1072,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by
 		if (! subs->syncbuf)
 			goto out_of_memory;
 		for (i = 0; i < SYNC_URBS; i++) {
-			snd_urb_ctx_t *u = &subs->syncurb[i];
+			struct snd_urb_ctx *u = &subs->syncurb[i];
 			u->index = i;
 			u->subs = subs;
 			u->packets = 1;
@@ -1104,7 +1102,7 @@ out_of_memory:
 /*
  * find a matching audio format
  */
-static struct audioformat *find_format(snd_usb_substream_t *subs, unsigned int format,
+static struct audioformat *find_format(struct snd_usb_substream *subs, unsigned int format,
 				       unsigned int rate, unsigned int channels)
 {
 	struct list_head *p;
@@ -1229,7 +1227,7 @@ static int init_usb_sample_rate(struct usb_device *dev, int iface,
 /*
  * find a matching format and set up the interface
  */
-static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
+static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
 {
 	struct usb_device *dev = subs->dev;
 	struct usb_host_interface *alts;
@@ -1358,10 +1356,10 @@ static int set_format(snd_usb_substream_t *subs, struct audioformat *fmt)
  * if sg buffer is supported on the later version of alsa, we'll follow
  * that.
  */
-static int snd_usb_hw_params(snd_pcm_substream_t *substream,
-			     snd_pcm_hw_params_t *hw_params)
+static int snd_usb_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *hw_params)
 {
-	snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+	struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
 	struct audioformat *fmt;
 	unsigned int channels, rate, format;
 	int ret, changed;
@@ -1415,9 +1413,9 @@ static int snd_usb_hw_params(snd_pcm_substream_t *substream,
  *
  * reset the audio format and release the buffer
  */
-static int snd_usb_hw_free(snd_pcm_substream_t *substream)
+static int snd_usb_hw_free(struct snd_pcm_substream *substream)
 {
-	snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data;
+	struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data;
 
 	subs->cur_audiofmt = NULL;
 	subs->cur_rate = 0;
@@ -1431,10 +1429,10 @@ static int snd_usb_hw_free(snd_pcm_substream_t *substream)
  *
  * only a few subtle things...
  */
-static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
+static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usb_substream_t *subs = runtime->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usb_substream *subs = runtime->private_data;
 
 	if (! subs->cur_audiofmt) {
 		snd_printk(KERN_ERR "usbaudio: no format is specified!\n");
@@ -1463,7 +1461,7 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
 		return 0;
 }
 
-static snd_pcm_hardware_t snd_usb_playback =
+static struct snd_pcm_hardware snd_usb_playback =
 {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_MMAP_VALID |
@@ -1477,7 +1475,7 @@ static snd_pcm_hardware_t snd_usb_playback =
 	.periods_max =		1024,
 };
 
-static snd_pcm_hardware_t snd_usb_capture =
+static struct snd_pcm_hardware snd_usb_capture =
 {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_MMAP_VALID |
@@ -1501,11 +1499,11 @@ static snd_pcm_hardware_t snd_usb_capture =
 #define hwc_debug(fmt, args...) /**/
 #endif
 
-static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat *fp)
+static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audioformat *fp)
 {
-	snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
-	snd_interval_t *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
-	snd_mask_t *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+	struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 
 	/* check the format */
 	if (! snd_mask_test(fmts, fp->format)) {
@@ -1529,12 +1527,12 @@ static int hw_check_valid_format(snd_pcm_hw_params_t *params, struct audioformat
 	return 1;
 }
 
-static int hw_rule_rate(snd_pcm_hw_params_t *params,
-			snd_pcm_hw_rule_t *rule)
+static int hw_rule_rate(struct snd_pcm_hw_params *params,
+			struct snd_pcm_hw_rule *rule)
 {
-	snd_usb_substream_t *subs = rule->private;
+	struct snd_usb_substream *subs = rule->private;
 	struct list_head *p;
-	snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 	unsigned int rmin, rmax;
 	int changed;
 
@@ -1583,12 +1581,12 @@ static int hw_rule_rate(snd_pcm_hw_params_t *params,
 }
 
 
-static int hw_rule_channels(snd_pcm_hw_params_t *params,
-			    snd_pcm_hw_rule_t *rule)
+static int hw_rule_channels(struct snd_pcm_hw_params *params,
+			    struct snd_pcm_hw_rule *rule)
 {
-	snd_usb_substream_t *subs = rule->private;
+	struct snd_usb_substream *subs = rule->private;
 	struct list_head *p;
-	snd_interval_t *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 	unsigned int rmin, rmax;
 	int changed;
 
@@ -1636,12 +1634,12 @@ static int hw_rule_channels(snd_pcm_hw_params_t *params,
 	return changed;
 }
 
-static int hw_rule_format(snd_pcm_hw_params_t *params,
-			  snd_pcm_hw_rule_t *rule)
+static int hw_rule_format(struct snd_pcm_hw_params *params,
+			  struct snd_pcm_hw_rule *rule)
 {
-	snd_usb_substream_t *subs = rule->private;
+	struct snd_usb_substream *subs = rule->private;
 	struct list_head *p;
-	snd_mask_t *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 	u64 fbits;
 	u32 oldbits[2];
 	int changed;
@@ -1674,7 +1672,7 @@ static int hw_rule_format(snd_pcm_hw_params_t *params,
 /*
  * check whether the registered audio formats need special hw-constraints
  */
-static int check_hw_params_convention(snd_usb_substream_t *subs)
+static int check_hw_params_convention(struct snd_usb_substream *subs)
 {
 	int i;
 	u32 *channels;
@@ -1758,7 +1756,7 @@ static int check_hw_params_convention(snd_usb_substream_t *subs)
  * set up the runtime hardware information.
  */
 
-static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
+static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs)
 {
 	struct list_head *p;
 	int err;
@@ -1819,12 +1817,12 @@ static int setup_hw_info(snd_pcm_runtime_t *runtime, snd_usb_substream_t *subs)
 	return 0;
 }
 
-static int snd_usb_pcm_open(snd_pcm_substream_t *substream, int direction,
-			    snd_pcm_hardware_t *hw)
+static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
+			    struct snd_pcm_hardware *hw)
 {
-	snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usb_substream_t *subs = &as->substream[direction];
+	struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usb_substream *subs = &as->substream[direction];
 
 	subs->interface = -1;
 	subs->format = 0;
@@ -1834,10 +1832,10 @@ static int snd_usb_pcm_open(snd_pcm_substream_t *substream, int direction,
 	return setup_hw_info(runtime, subs);
 }
 
-static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
+static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
 {
-	snd_usb_stream_t *as = snd_pcm_substream_chip(substream);
-	snd_usb_substream_t *subs = &as->substream[direction];
+	struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
+	struct snd_usb_substream *subs = &as->substream[direction];
 
 	if (subs->interface >= 0) {
 		usb_set_interface(subs->dev, subs->interface, 0);
@@ -1847,27 +1845,27 @@ static int snd_usb_pcm_close(snd_pcm_substream_t *substream, int direction)
 	return 0;
 }
 
-static int snd_usb_playback_open(snd_pcm_substream_t *substream)
+static int snd_usb_playback_open(struct snd_pcm_substream *substream)
 {
 	return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback);
 }
 
-static int snd_usb_playback_close(snd_pcm_substream_t *substream)
+static int snd_usb_playback_close(struct snd_pcm_substream *substream)
 {
 	return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_PLAYBACK);
 }
 
-static int snd_usb_capture_open(snd_pcm_substream_t *substream)
+static int snd_usb_capture_open(struct snd_pcm_substream *substream)
 {
 	return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture);
 }
 
-static int snd_usb_capture_close(snd_pcm_substream_t *substream)
+static int snd_usb_capture_close(struct snd_pcm_substream *substream)
 {
 	return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_CAPTURE);
 }
 
-static snd_pcm_ops_t snd_usb_playback_ops = {
+static struct snd_pcm_ops snd_usb_playback_ops = {
 	.open =		snd_usb_playback_open,
 	.close =	snd_usb_playback_close,
 	.ioctl =	snd_pcm_lib_ioctl,
@@ -1879,7 +1877,7 @@ static snd_pcm_ops_t snd_usb_playback_ops = {
 	.page =		snd_pcm_get_vmalloc_page,
 };
 
-static snd_pcm_ops_t snd_usb_capture_ops = {
+static struct snd_pcm_ops snd_usb_capture_ops = {
 	.open =		snd_usb_capture_open,
 	.close =	snd_usb_capture_close,
 	.ioctl =	snd_pcm_lib_ioctl,
@@ -2006,7 +2004,7 @@ static struct usb_driver usb_audio_driver = {
 /*
  * proc interface for list the supported pcm formats
  */
-static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
 	struct list_head *p;
 	static char *sync_types[4] = {
@@ -2042,7 +2040,7 @@ static void proc_dump_substream_formats(snd_usb_substream_t *subs, snd_info_buff
 	}
 }
 
-static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffer_t *buffer)
+static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
 {
 	if (subs->running) {
 		unsigned int i;
@@ -2064,9 +2062,9 @@ static void proc_dump_substream_status(snd_usb_substream_t *subs, snd_info_buffe
 	}
 }
 
-static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-	snd_usb_stream_t *stream = entry->private_data;
+	struct snd_usb_stream *stream = entry->private_data;
 
 	snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
 
@@ -2082,11 +2080,11 @@ static void proc_pcm_format_read(snd_info_entry_t *entry, snd_info_buffer_t *buf
 	}
 }
 
-static void proc_pcm_format_add(snd_usb_stream_t *stream)
+static void proc_pcm_format_add(struct snd_usb_stream *stream)
 {
-	snd_info_entry_t *entry;
+	struct snd_info_entry *entry;
 	char name[32];
-	snd_card_t *card = stream->chip->card;
+	struct snd_card *card = stream->chip->card;
 
 	sprintf(name, "stream%d", stream->pcm_index);
 	if (! snd_card_proc_new(card, name, &entry))
@@ -2098,9 +2096,9 @@ static void proc_pcm_format_add(snd_usb_stream_t *stream)
  * initialize the substream instance.
  */
 
-static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat *fp)
+static void init_substream(struct snd_usb_stream *as, int stream, struct audioformat *fp)
 {
-	snd_usb_substream_t *subs = &as->substream[stream];
+	struct snd_usb_substream *subs = &as->substream[stream];
 
 	INIT_LIST_HEAD(&subs->fmt_list);
 	spin_lock_init(&subs->lock);
@@ -2127,7 +2125,7 @@ static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat
 /*
  * free a substream
  */
-static void free_substream(snd_usb_substream_t *subs)
+static void free_substream(struct snd_usb_substream *subs)
 {
 	struct list_head *p, *n;
 
@@ -2144,7 +2142,7 @@ static void free_substream(snd_usb_substream_t *subs)
 /*
  * free a usb stream instance
  */
-static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
+static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
 {
 	free_substream(&stream->substream[0]);
 	free_substream(&stream->substream[1]);
@@ -2152,9 +2150,9 @@ static void snd_usb_audio_stream_free(snd_usb_stream_t *stream)
 	kfree(stream);
 }
 
-static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
+static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
 {
-	snd_usb_stream_t *stream = pcm->private_data;
+	struct snd_usb_stream *stream = pcm->private_data;
 	if (stream) {
 		stream->pcm = NULL;
 		snd_usb_audio_stream_free(stream);
@@ -2167,16 +2165,16 @@ static void snd_usb_audio_pcm_free(snd_pcm_t *pcm)
  * if a stream with the same endpoint already exists, append to it.
  * if not, create a new pcm stream.
  */
-static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audioformat *fp)
+static int add_audio_endpoint(struct snd_usb_audio *chip, int stream, struct audioformat *fp)
 {
 	struct list_head *p;
-	snd_usb_stream_t *as;
-	snd_usb_substream_t *subs;
-	snd_pcm_t *pcm;
+	struct snd_usb_stream *as;
+	struct snd_usb_substream *subs;
+	struct snd_pcm *pcm;
 	int err;
 
 	list_for_each(p, &chip->pcm_list) {
-		as = list_entry(p, snd_usb_stream_t, list);
+		as = list_entry(p, struct snd_usb_stream, list);
 		if (as->fmt_type != fp->fmt_type)
 			continue;
 		subs = &as->substream[stream];
@@ -2191,7 +2189,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
 	}
 	/* look for an empty stream */
 	list_for_each(p, &chip->pcm_list) {
-		as = list_entry(p, snd_usb_stream_t, list);
+		as = list_entry(p, struct snd_usb_stream, list);
 		if (as->fmt_type != fp->fmt_type)
 			continue;
 		subs = &as->substream[stream];
@@ -2243,7 +2241,7 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
 /*
  * check if the device uses big-endian samples
  */
-static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
+static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 {
 	switch (chip->usb_id) {
 	case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
@@ -2265,7 +2263,7 @@ static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
  * @format: the format tag (wFormatTag)
  * @fmt: the format type descriptor
  */
-static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i_type(struct snd_usb_audio *chip, struct audioformat *fp,
 				     int format, unsigned char *fmt)
 {
 	int pcm_format;
@@ -2348,7 +2346,7 @@ static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *
  * @offset: the start offset of descriptor pointing the rate type
  *          (7 for type I and II, 8 for type II)
  */
-static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioformat *fp,
 				    unsigned char *fmt, int offset)
 {
 	int nr_rates = fmt[offset];
@@ -2401,7 +2399,7 @@ static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *f
 /*
  * parse the format type I and III descriptors
  */
-static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_i(struct snd_usb_audio *chip, struct audioformat *fp,
 				int format, unsigned char *fmt)
 {
 	int pcm_format;
@@ -2430,7 +2428,7 @@ static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
 /*
  * prase the format type II descriptor
  */
-static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format_ii(struct snd_usb_audio *chip, struct audioformat *fp,
 				 int format, unsigned char *fmt)
 {
 	int brate, framesize;
@@ -2457,7 +2455,7 @@ static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
 	return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */
 }
 
-static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
+static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp,
 			      int format, unsigned char *fmt, int stream)
 {
 	int err;
@@ -2494,7 +2492,7 @@ static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
 	return 0;
 }
 
-static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
+static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 {
 	struct usb_device *dev;
 	struct usb_interface *iface;
@@ -2645,10 +2643,10 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
 static void snd_usb_stream_disconnect(struct list_head *head)
 {
 	int idx;
-	snd_usb_stream_t *as;
-	snd_usb_substream_t *subs;
+	struct snd_usb_stream *as;
+	struct snd_usb_substream *subs;
 
-	as = list_entry(head, snd_usb_stream_t, list);
+	as = list_entry(head, struct snd_usb_stream, list);
 	for (idx = 0; idx < 2; idx++) {
 		subs = &as->substream[idx];
 		if (!subs->num_formats)
@@ -2661,7 +2659,7 @@ static void snd_usb_stream_disconnect(struct list_head *head)
 /*
  * parse audio control descriptor and create pcm/midi streams
  */
-static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
+static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 {
 	struct usb_device *dev = chip->dev;
 	struct usb_host_interface *host_iface;
@@ -2728,9 +2726,9 @@ static int snd_usb_create_streams(snd_usb_audio_t *chip, int ctrlif)
 /*
  * create a stream for an endpoint/altsetting without proper descriptors
  */
-static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
+static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 				     struct usb_interface *iface,
-				     const snd_usb_audio_quirk_t *quirk)
+				     const struct snd_usb_audio_quirk *quirk)
 {
 	struct audioformat *fp;
 	struct usb_host_interface *alts;
@@ -2777,9 +2775,9 @@ static int create_fixed_stream_quirk(snd_usb_audio_t *chip,
 /*
  * create a stream for an interface with proper descriptors
  */
-static int create_standard_audio_quirk(snd_usb_audio_t *chip,
+static int create_standard_audio_quirk(struct snd_usb_audio *chip,
 				       struct usb_interface *iface,
-				       const snd_usb_audio_quirk_t *quirk)
+				       const struct snd_usb_audio_quirk *quirk)
 {
 	struct usb_host_interface *alts;
 	struct usb_interface_descriptor *altsd;
@@ -2802,9 +2800,9 @@ static int create_standard_audio_quirk(snd_usb_audio_t *chip,
  * Create a stream for an Edirol UA-700/UA-25 interface.  The only way
  * to detect the sample rate is by looking at wMaxPacketSize.
  */
-static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
+static int create_ua700_ua25_quirk(struct snd_usb_audio *chip,
 				   struct usb_interface *iface,
-				   const snd_usb_audio_quirk_t *quirk)
+				   const struct snd_usb_audio_quirk *quirk)
 {
 	static const struct audioformat ua_format = {
 		.format = SNDRV_PCM_FORMAT_S24_3LE,
@@ -2826,19 +2824,19 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
 	altsd = get_iface_desc(alts);
 
 	if (altsd->bNumEndpoints == 2) {
-		static const snd_usb_midi_endpoint_info_t ua700_ep = {
+		static const struct snd_usb_midi_endpoint_info ua700_ep = {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0003
 		};
-		static const snd_usb_audio_quirk_t ua700_quirk = {
+		static const struct snd_usb_audio_quirk ua700_quirk = {
 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
 			.data = &ua700_ep
 		};
-		static const snd_usb_midi_endpoint_info_t ua25_ep = {
+		static const struct snd_usb_midi_endpoint_info ua25_ep = {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		};
-		static const snd_usb_audio_quirk_t ua25_quirk = {
+		static const struct snd_usb_audio_quirk ua25_quirk = {
 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
 			.data = &ua25_ep
 		};
@@ -2895,9 +2893,9 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
 /*
  * Create a stream for an Edirol UA-1000 interface.
  */
-static int create_ua1000_quirk(snd_usb_audio_t *chip,
+static int create_ua1000_quirk(struct snd_usb_audio *chip,
 			       struct usb_interface *iface,
-			       const snd_usb_audio_quirk_t *quirk)
+			       const struct snd_usb_audio_quirk *quirk)
 {
 	static const struct audioformat ua1000_format = {
 		.format = SNDRV_PCM_FORMAT_S32_LE,
@@ -2944,16 +2942,16 @@ static int create_ua1000_quirk(snd_usb_audio_t *chip,
 	return 0;
 }
 
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
 				struct usb_interface *iface,
-				const snd_usb_audio_quirk_t *quirk);
+				const struct snd_usb_audio_quirk *quirk);
 
 /*
  * handle the quirks for the contained interfaces
  */
-static int create_composite_quirk(snd_usb_audio_t *chip,
+static int create_composite_quirk(struct snd_usb_audio *chip,
 				  struct usb_interface *iface,
-				  const snd_usb_audio_quirk_t *quirk)
+				  const struct snd_usb_audio_quirk *quirk)
 {
 	int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
 	int err;
@@ -2974,9 +2972,9 @@ static int create_composite_quirk(snd_usb_audio_t *chip,
 	return 0;
 }
 
-static int ignore_interface_quirk(snd_usb_audio_t *chip,
+static int ignore_interface_quirk(struct snd_usb_audio *chip,
 				  struct usb_interface *iface,
-				  const snd_usb_audio_quirk_t *quirk)
+				  const struct snd_usb_audio_quirk *quirk)
 {
 	return 0;
 }
@@ -3039,12 +3037,12 @@ static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
  * after this.
  * returns a negative value at error.
  */
-static int snd_usb_create_quirk(snd_usb_audio_t *chip,
+static int snd_usb_create_quirk(struct snd_usb_audio *chip,
 				struct usb_interface *iface,
-				const snd_usb_audio_quirk_t *quirk)
+				const struct snd_usb_audio_quirk *quirk)
 {
-	typedef int (*quirk_func_t)(snd_usb_audio_t *, struct usb_interface *,
-				    const snd_usb_audio_quirk_t *);
+	typedef int (*quirk_func_t)(struct snd_usb_audio *, struct usb_interface *,
+				    const struct snd_usb_audio_quirk *);
 	static const quirk_func_t quirk_funcs[] = {
 		[QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
 		[QUIRK_COMPOSITE] = create_composite_quirk,
@@ -3074,25 +3072,25 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip,
 /*
  * common proc files to show the usb device info
  */
-static void proc_audio_usbbus_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-	snd_usb_audio_t *chip = entry->private_data;
+	struct snd_usb_audio *chip = entry->private_data;
 	if (! chip->shutdown)
 		snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
 }
 
-static void proc_audio_usbid_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
+static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
 {
-	snd_usb_audio_t *chip = entry->private_data;
+	struct snd_usb_audio *chip = entry->private_data;
 	if (! chip->shutdown)
 		snd_iprintf(buffer, "%04x:%04x\n", 
 			    USB_ID_VENDOR(chip->usb_id),
 			    USB_ID_PRODUCT(chip->usb_id));
 }
 
-static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
+static void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
 {
-	snd_info_entry_t *entry;
+	struct snd_info_entry *entry;
 	if (! snd_card_proc_new(chip->card, "usbbus", &entry))
 		snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbbus_read);
 	if (! snd_card_proc_new(chip->card, "usbid", &entry))
@@ -3106,15 +3104,15 @@ static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
  *
  */
 
-static int snd_usb_audio_free(snd_usb_audio_t *chip)
+static int snd_usb_audio_free(struct snd_usb_audio *chip)
 {
 	kfree(chip);
 	return 0;
 }
 
-static int snd_usb_audio_dev_free(snd_device_t *device)
+static int snd_usb_audio_dev_free(struct snd_device *device)
 {
-	snd_usb_audio_t *chip = device->device_data;
+	struct snd_usb_audio *chip = device->device_data;
 	return snd_usb_audio_free(chip);
 }
 
@@ -3123,14 +3121,14 @@ static int snd_usb_audio_dev_free(snd_device_t *device)
  * create a chip instance and set its names.
  */
 static int snd_usb_audio_create(struct usb_device *dev, int idx,
-				const snd_usb_audio_quirk_t *quirk,
-				snd_usb_audio_t **rchip)
+				const struct snd_usb_audio_quirk *quirk,
+				struct snd_usb_audio **rchip)
 {
-	snd_card_t *card;
-	snd_usb_audio_t *chip;
+	struct snd_card *card;
+	struct snd_usb_audio *chip;
 	int err, len;
 	char component[14];
-	static snd_device_ops_t ops = {
+	static struct snd_device_ops ops = {
 		.dev_free =	snd_usb_audio_dev_free,
 	};
 
@@ -3234,9 +3232,9 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
 				 struct usb_interface *intf,
 				 const struct usb_device_id *usb_id)
 {
-	const snd_usb_audio_quirk_t *quirk = (const snd_usb_audio_quirk_t *)usb_id->driver_info;
+	const struct snd_usb_audio_quirk *quirk = (const struct snd_usb_audio_quirk *)usb_id->driver_info;
 	int i, err;
-	snd_usb_audio_t *chip;
+	struct snd_usb_audio *chip;
 	struct usb_host_interface *alts;
 	int ifnum;
 	u32 id;
@@ -3337,8 +3335,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
  */
 static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 {
-	snd_usb_audio_t *chip;
-	snd_card_t *card;
+	struct snd_usb_audio *chip;
+	struct snd_card *card;
 	struct list_head *p;
 
 	if (ptr == (void *)-1L)
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index b580202..ecd724b 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -126,12 +126,10 @@
 /*
  */
 
-typedef struct snd_usb_audio snd_usb_audio_t;
-
 struct snd_usb_audio {
 	int index;
 	struct usb_device *dev;
-	snd_card_t *card;
+	struct snd_card *card;
 	u32 usb_id;
 	int shutdown;
 	int num_interfaces;
@@ -172,9 +170,6 @@ enum quirk_type {
 	QUIRK_TYPE_COUNT
 };
 
-typedef struct snd_usb_audio_quirk snd_usb_audio_quirk_t;
-typedef struct snd_usb_midi_endpoint_info snd_usb_midi_endpoint_info_t;
-
 struct snd_usb_audio_quirk {
 	const char *vendor_name;
 	const char *product_name;
@@ -228,12 +223,15 @@ unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
 void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
 void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
 
-int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout);
+int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
+		    __u8 request, __u8 requesttype, __u16 value, __u16 index,
+		    void *data, __u16 size, int timeout);
 
-int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif);
+int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif);
 void snd_usb_mixer_disconnect(struct list_head *p);
 
-int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk);
+int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface,
+				  const struct snd_usb_audio_quirk *quirk);
 void snd_usbmidi_input_stop(struct list_head* p);
 void snd_usbmidi_input_start(struct list_head* p);
 void snd_usbmidi_disconnect(struct list_head *p);
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index f8aa662..f15b021 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -84,39 +84,36 @@ struct usb_ms_endpoint_descriptor {
 	__u8  baAssocJackID[0];
 } __attribute__ ((packed));
 
-typedef struct snd_usb_midi snd_usb_midi_t;
-typedef struct snd_usb_midi_endpoint snd_usb_midi_endpoint_t;
-typedef struct snd_usb_midi_out_endpoint snd_usb_midi_out_endpoint_t;
-typedef struct snd_usb_midi_in_endpoint snd_usb_midi_in_endpoint_t;
-typedef struct usbmidi_out_port usbmidi_out_port_t;
-typedef struct usbmidi_in_port usbmidi_in_port_t;
+struct snd_usb_midi_in_endpoint;
+struct snd_usb_midi_out_endpoint;
+struct snd_usb_midi_endpoint;
 
 struct usb_protocol_ops {
-	void (*input)(snd_usb_midi_in_endpoint_t*, uint8_t*, int);
-	void (*output)(snd_usb_midi_out_endpoint_t*);
+	void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int);
+	void (*output)(struct snd_usb_midi_out_endpoint*);
 	void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t);
-	void (*init_out_endpoint)(snd_usb_midi_out_endpoint_t*);
-	void (*finish_out_endpoint)(snd_usb_midi_out_endpoint_t*);
+	void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint*);
+	void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint*);
 };
 
 struct snd_usb_midi {
-	snd_usb_audio_t *chip;
+	struct snd_usb_audio *chip;
 	struct usb_interface *iface;
-	const snd_usb_audio_quirk_t *quirk;
-	snd_rawmidi_t* rmidi;
+	const struct snd_usb_audio_quirk *quirk;
+	struct snd_rawmidi *rmidi;
 	struct usb_protocol_ops* usb_protocol_ops;
 	struct list_head list;
 	struct timer_list error_timer;
 
 	struct snd_usb_midi_endpoint {
-		snd_usb_midi_out_endpoint_t *out;
-		snd_usb_midi_in_endpoint_t *in;
+		struct snd_usb_midi_out_endpoint *out;
+		struct snd_usb_midi_in_endpoint *in;
 	} endpoints[MIDI_MAX_ENDPOINTS];
 	unsigned long input_triggered;
 };
 
 struct snd_usb_midi_out_endpoint {
-	snd_usb_midi_t* umidi;
+	struct snd_usb_midi* umidi;
 	struct urb* urb;
 	int urb_active;
 	int max_transfer;		/* size of urb buffer */
@@ -125,8 +122,8 @@ struct snd_usb_midi_out_endpoint {
 	spinlock_t buffer_lock;
 
 	struct usbmidi_out_port {
-		snd_usb_midi_out_endpoint_t* ep;
-		snd_rawmidi_substream_t* substream;
+		struct snd_usb_midi_out_endpoint* ep;
+		struct snd_rawmidi_substream *substream;
 		int active;
 		uint8_t cable;		/* cable number << 4 */
 		uint8_t state;
@@ -143,17 +140,17 @@ struct snd_usb_midi_out_endpoint {
 };
 
 struct snd_usb_midi_in_endpoint {
-	snd_usb_midi_t* umidi;
+	struct snd_usb_midi* umidi;
 	struct urb* urb;
 	struct usbmidi_in_port {
-		snd_rawmidi_substream_t* substream;
+		struct snd_rawmidi_substream *substream;
 	} ports[0x10];
 	u8 seen_f5;
 	u8 error_resubmit;
 	int current_port;
 };
 
-static void snd_usbmidi_do_output(snd_usb_midi_out_endpoint_t* ep);
+static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep);
 
 static const uint8_t snd_usbmidi_cin_length[] = {
 	0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
@@ -196,10 +193,10 @@ static int snd_usbmidi_urb_error(int status)
 /*
  * Receives a chunk of MIDI data.
  */
-static void snd_usbmidi_input_data(snd_usb_midi_in_endpoint_t* ep, int portidx,
+static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint* ep, int portidx,
 				   uint8_t* data, int length)
 {
-	usbmidi_in_port_t* port = &ep->ports[portidx];
+	struct usbmidi_in_port* port = &ep->ports[portidx];
 
 	if (!port->substream) {
 		snd_printd("unexpected port %d!\n", portidx);
@@ -227,7 +224,7 @@ static void dump_urb(const char *type, const u8 *data, int length)
  */
 static void snd_usbmidi_in_urb_complete(struct urb* urb, struct pt_regs *regs)
 {
-	snd_usb_midi_in_endpoint_t* ep = urb->context;
+	struct snd_usb_midi_in_endpoint* ep = urb->context;
 
 	if (urb->status == 0) {
 		dump_urb("received", urb->transfer_buffer, urb->actual_length);
@@ -251,7 +248,7 @@ static void snd_usbmidi_in_urb_complete(struct urb* urb, struct pt_regs *regs)
 
 static void snd_usbmidi_out_urb_complete(struct urb* urb, struct pt_regs *regs)
 {
-	snd_usb_midi_out_endpoint_t* ep = urb->context;
+	struct snd_usb_midi_out_endpoint* ep = urb->context;
 
 	spin_lock(&ep->buffer_lock);
 	ep->urb_active = 0;
@@ -272,7 +269,7 @@ static void snd_usbmidi_out_urb_complete(struct urb* urb, struct pt_regs *regs)
  * This is called when some data should be transferred to the device
  * (from one or more substreams).
  */
-static void snd_usbmidi_do_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep)
 {
 	struct urb* urb = ep->urb;
 	unsigned long flags;
@@ -297,7 +294,7 @@ static void snd_usbmidi_do_output(snd_usb_midi_out_endpoint_t* ep)
 
 static void snd_usbmidi_out_tasklet(unsigned long data)
 {
-	snd_usb_midi_out_endpoint_t* ep = (snd_usb_midi_out_endpoint_t *) data;
+	struct snd_usb_midi_out_endpoint* ep = (struct snd_usb_midi_out_endpoint *) data;
 
 	snd_usbmidi_do_output(ep);
 }
@@ -305,11 +302,11 @@ static void snd_usbmidi_out_tasklet(unsigned long data)
 /* called after transfers had been interrupted due to some USB error */
 static void snd_usbmidi_error_timer(unsigned long data)
 {
-	snd_usb_midi_t *umidi = (snd_usb_midi_t *)data;
+	struct snd_usb_midi *umidi = (struct snd_usb_midi *)data;
 	int i;
 
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
-		snd_usb_midi_in_endpoint_t *in = umidi->endpoints[i].in;
+		struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in;
 		if (in && in->error_resubmit) {
 			in->error_resubmit = 0;
 			in->urb->dev = umidi->chip->dev;
@@ -321,7 +318,7 @@ static void snd_usbmidi_error_timer(unsigned long data)
 }
 
 /* helper function to send static data that may not DMA-able */
-static int send_bulk_static_data(snd_usb_midi_out_endpoint_t* ep,
+static int send_bulk_static_data(struct snd_usb_midi_out_endpoint* ep,
 				 const void *data, int len)
 {
 	int err;
@@ -342,7 +339,7 @@ static int send_bulk_static_data(snd_usb_midi_out_endpoint_t* ep,
  * fourth byte in each packet, and uses length instead of CIN.
  */
 
-static void snd_usbmidi_standard_input(snd_usb_midi_in_endpoint_t* ep,
+static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint* ep,
 				       uint8_t* buffer, int buffer_length)
 {
 	int i;
@@ -355,7 +352,7 @@ static void snd_usbmidi_standard_input(snd_usb_midi_in_endpoint_t* ep,
 		}
 }
 
-static void snd_usbmidi_midiman_input(snd_usb_midi_in_endpoint_t* ep,
+static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint* ep,
 				      uint8_t* buffer, int buffer_length)
 {
 	int i;
@@ -401,7 +398,7 @@ static void snd_usbmidi_output_midiman_packet(struct urb* urb, uint8_t p0,
 /*
  * Converts MIDI commands to USB MIDI packets.
  */
-static void snd_usbmidi_transmit_byte(usbmidi_out_port_t* port,
+static void snd_usbmidi_transmit_byte(struct usbmidi_out_port* port,
 				      uint8_t b, struct urb* urb)
 {
 	uint8_t p0 = port->cable;
@@ -495,14 +492,14 @@ static void snd_usbmidi_transmit_byte(usbmidi_out_port_t* port,
 	}
 }
 
-static void snd_usbmidi_standard_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint* ep)
 {
 	struct urb* urb = ep->urb;
 	int p;
 
 	/* FIXME: lower-numbered ports can starve higher-numbered ports */
 	for (p = 0; p < 0x10; ++p) {
-		usbmidi_out_port_t* port = &ep->ports[p];
+		struct usbmidi_out_port* port = &ep->ports[p];
 		if (!port->active)
 			continue;
 		while (urb->transfer_buffer_length + 3 < ep->max_transfer) {
@@ -534,7 +531,7 @@ static struct usb_protocol_ops snd_usbmidi_midiman_ops = {
  * at the third byte.
  */
 
-static void snd_usbmidi_novation_input(snd_usb_midi_in_endpoint_t* ep,
+static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint* ep,
 				       uint8_t* buffer, int buffer_length)
 {
 	if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1)
@@ -542,7 +539,7 @@ static void snd_usbmidi_novation_input(snd_usb_midi_in_endpoint_t* ep,
 	snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1);
 }
 
-static void snd_usbmidi_novation_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep)
 {
 	uint8_t* transfer_buffer;
 	int count;
@@ -571,13 +568,13 @@ static struct usb_protocol_ops snd_usbmidi_novation_ops = {
  * "raw" protocol: used by the MOTU FastLane.
  */
 
-static void snd_usbmidi_raw_input(snd_usb_midi_in_endpoint_t* ep,
+static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint* ep,
 				  uint8_t* buffer, int buffer_length)
 {
 	snd_usbmidi_input_data(ep, 0, buffer, buffer_length);
 }
 
-static void snd_usbmidi_raw_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint* ep)
 {
 	int count;
 
@@ -602,7 +599,7 @@ static struct usb_protocol_ops snd_usbmidi_raw_ops = {
  * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching.
  */
 
-static void snd_usbmidi_emagic_init_out(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint* ep)
 {
 	static const u8 init_data[] = {
 		/* initialization magic: "get version" */
@@ -619,7 +616,7 @@ static void snd_usbmidi_emagic_init_out(snd_usb_midi_out_endpoint_t* ep)
 	send_bulk_static_data(ep, init_data, sizeof(init_data));
 }
 
-static void snd_usbmidi_emagic_finish_out(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint* ep)
 {
 	static const u8 finish_data[] = {
 		/* switch to patch mode with last preset */
@@ -635,7 +632,7 @@ static void snd_usbmidi_emagic_finish_out(snd_usb_midi_out_endpoint_t* ep)
 	send_bulk_static_data(ep, finish_data, sizeof(finish_data));
 }
 
-static void snd_usbmidi_emagic_input(snd_usb_midi_in_endpoint_t* ep,
+static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint* ep,
 				     uint8_t* buffer, int buffer_length)
 {
 	int i;
@@ -679,7 +676,7 @@ static void snd_usbmidi_emagic_input(snd_usb_midi_in_endpoint_t* ep,
 	}
 }
 
-static void snd_usbmidi_emagic_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep)
 {
 	int port0 = ep->current_port;
 	uint8_t* buf = ep->urb->transfer_buffer;
@@ -689,7 +686,7 @@ static void snd_usbmidi_emagic_output(snd_usb_midi_out_endpoint_t* ep)
 	for (i = 0; i < 0x10; ++i) {
 		/* round-robin, starting at the last current port */
 		int portnum = (port0 + i) & 15;
-		usbmidi_out_port_t* port = &ep->ports[portnum];
+		struct usbmidi_out_port* port = &ep->ports[portnum];
 
 		if (!port->active)
 			continue;
@@ -733,10 +730,10 @@ static struct usb_protocol_ops snd_usbmidi_emagic_ops = {
 };
 
 
-static int snd_usbmidi_output_open(snd_rawmidi_substream_t* substream)
+static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
 {
-	snd_usb_midi_t* umidi = substream->rmidi->private_data;
-	usbmidi_out_port_t* port = NULL;
+	struct snd_usb_midi* umidi = substream->rmidi->private_data;
+	struct usbmidi_out_port* port = NULL;
 	int i, j;
 
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
@@ -755,14 +752,14 @@ static int snd_usbmidi_output_open(snd_rawmidi_substream_t* substream)
 	return 0;
 }
 
-static int snd_usbmidi_output_close(snd_rawmidi_substream_t* substream)
+static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream)
 {
 	return 0;
 }
 
-static void snd_usbmidi_output_trigger(snd_rawmidi_substream_t* substream, int up)
+static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, int up)
 {
-	usbmidi_out_port_t* port = (usbmidi_out_port_t*)substream->runtime->private_data;
+	struct usbmidi_out_port* port = (struct usbmidi_out_port*)substream->runtime->private_data;
 
 	port->active = up;
 	if (up) {
@@ -777,19 +774,19 @@ static void snd_usbmidi_output_trigger(snd_rawmidi_substream_t* substream, int u
 	}
 }
 
-static int snd_usbmidi_input_open(snd_rawmidi_substream_t* substream)
+static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream)
 {
 	return 0;
 }
 
-static int snd_usbmidi_input_close(snd_rawmidi_substream_t* substream)
+static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream)
 {
 	return 0;
 }
 
-static void snd_usbmidi_input_trigger(snd_rawmidi_substream_t* substream, int up)
+static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
 {
-	snd_usb_midi_t* umidi = substream->rmidi->private_data;
+	struct snd_usb_midi* umidi = substream->rmidi->private_data;
 
 	if (up)
 		set_bit(substream->number, &umidi->input_triggered);
@@ -797,13 +794,13 @@ static void snd_usbmidi_input_trigger(snd_rawmidi_substream_t* substream, int up
 		clear_bit(substream->number, &umidi->input_triggered);
 }
 
-static snd_rawmidi_ops_t snd_usbmidi_output_ops = {
+static struct snd_rawmidi_ops snd_usbmidi_output_ops = {
 	.open = snd_usbmidi_output_open,
 	.close = snd_usbmidi_output_close,
 	.trigger = snd_usbmidi_output_trigger,
 };
 
-static snd_rawmidi_ops_t snd_usbmidi_input_ops = {
+static struct snd_rawmidi_ops snd_usbmidi_input_ops = {
 	.open = snd_usbmidi_input_open,
 	.close = snd_usbmidi_input_close,
 	.trigger = snd_usbmidi_input_trigger
@@ -813,7 +810,7 @@ static snd_rawmidi_ops_t snd_usbmidi_input_ops = {
  * Frees an input endpoint.
  * May be called when ep hasn't been initialized completely.
  */
-static void snd_usbmidi_in_endpoint_delete(snd_usb_midi_in_endpoint_t* ep)
+static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint* ep)
 {
 	if (ep->urb) {
 		usb_buffer_free(ep->umidi->chip->dev,
@@ -828,11 +825,11 @@ static void snd_usbmidi_in_endpoint_delete(snd_usb_midi_in_endpoint_t* ep)
 /*
  * Creates an input endpoint.
  */
-static int snd_usbmidi_in_endpoint_create(snd_usb_midi_t* umidi,
-					  snd_usb_midi_endpoint_info_t* ep_info,
-					  snd_usb_midi_endpoint_t* rep)
+static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi,
+					  struct snd_usb_midi_endpoint_info* ep_info,
+					  struct snd_usb_midi_endpoint* rep)
 {
-	snd_usb_midi_in_endpoint_t* ep;
+	struct snd_usb_midi_in_endpoint* ep;
 	void* buffer;
 	unsigned int pipe;
 	int length;
@@ -885,7 +882,7 @@ static unsigned int snd_usbmidi_count_bits(unsigned int x)
  * Frees an output endpoint.
  * May be called when ep hasn't been initialized completely.
  */
-static void snd_usbmidi_out_endpoint_delete(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint* ep)
 {
 	if (ep->urb) {
 		usb_buffer_free(ep->umidi->chip->dev, ep->max_transfer,
@@ -899,11 +896,11 @@ static void snd_usbmidi_out_endpoint_delete(snd_usb_midi_out_endpoint_t* ep)
 /*
  * Creates an output endpoint, and initializes output ports.
  */
-static int snd_usbmidi_out_endpoint_create(snd_usb_midi_t* umidi,
-					   snd_usb_midi_endpoint_info_t* ep_info,
-			 		   snd_usb_midi_endpoint_t* rep)
+static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi,
+					   struct snd_usb_midi_endpoint_info* ep_info,
+			 		   struct snd_usb_midi_endpoint* rep)
 {
-	snd_usb_midi_out_endpoint_t* ep;
+	struct snd_usb_midi_out_endpoint* ep;
 	int i;
 	unsigned int pipe;
 	void* buffer;
@@ -951,12 +948,12 @@ static int snd_usbmidi_out_endpoint_create(snd_usb_midi_t* umidi,
 /*
  * Frees everything.
  */
-static void snd_usbmidi_free(snd_usb_midi_t* umidi)
+static void snd_usbmidi_free(struct snd_usb_midi* umidi)
 {
 	int i;
 
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
-		snd_usb_midi_endpoint_t* ep = &umidi->endpoints[i];
+		struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
 		if (ep->out)
 			snd_usbmidi_out_endpoint_delete(ep->out);
 		if (ep->in)
@@ -970,13 +967,13 @@ static void snd_usbmidi_free(snd_usb_midi_t* umidi)
  */
 void snd_usbmidi_disconnect(struct list_head* p)
 {
-	snd_usb_midi_t* umidi;
+	struct snd_usb_midi* umidi;
 	int i;
 
-	umidi = list_entry(p, snd_usb_midi_t, list);
+	umidi = list_entry(p, struct snd_usb_midi, list);
 	del_timer_sync(&umidi->error_timer);
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
-		snd_usb_midi_endpoint_t* ep = &umidi->endpoints[i];
+		struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
 		if (ep->out)
 			tasklet_kill(&ep->out->tasklet);
 		if (ep->out && ep->out->urb) {
@@ -989,19 +986,19 @@ void snd_usbmidi_disconnect(struct list_head* p)
 	}
 }
 
-static void snd_usbmidi_rawmidi_free(snd_rawmidi_t* rmidi)
+static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi)
 {
-	snd_usb_midi_t* umidi = rmidi->private_data;
+	struct snd_usb_midi* umidi = rmidi->private_data;
 	snd_usbmidi_free(umidi);
 }
 
-static snd_rawmidi_substream_t* snd_usbmidi_find_substream(snd_usb_midi_t* umidi,
+static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi* umidi,
 							   int stream, int number)
 {
 	struct list_head* list;
 
 	list_for_each(list, &umidi->rmidi->streams[stream].substreams) {
-		snd_rawmidi_substream_t* substream = list_entry(list, snd_rawmidi_substream_t, list);
+		struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list);
 		if (substream->number == number)
 			return substream;
 	}
@@ -1097,14 +1094,14 @@ static struct {
 	{ USB_ID(0x086a, 0x0003), 4, "%s Broadcast" },
 };
 
-static void snd_usbmidi_init_substream(snd_usb_midi_t* umidi,
+static void snd_usbmidi_init_substream(struct snd_usb_midi* umidi,
 				       int stream, int number,
-				       snd_rawmidi_substream_t** rsubstream)
+				       struct snd_rawmidi_substream ** rsubstream)
 {
 	int i;
 	const char *name_format;
 
-	snd_rawmidi_substream_t* substream = snd_usbmidi_find_substream(umidi, stream, number);
+	struct snd_rawmidi_substream *substream = snd_usbmidi_find_substream(umidi, stream, number);
 	if (!substream) {
 		snd_printd(KERN_ERR "substream %d:%d not found\n", stream, number);
 		return;
@@ -1128,8 +1125,8 @@ static void snd_usbmidi_init_substream(snd_usb_midi_t* umidi,
 /*
  * Creates the endpoints and their ports.
  */
-static int snd_usbmidi_create_endpoints(snd_usb_midi_t* umidi,
-					snd_usb_midi_endpoint_info_t* endpoints)
+static int snd_usbmidi_create_endpoints(struct snd_usb_midi* umidi,
+					struct snd_usb_midi_endpoint_info* endpoints)
 {
 	int i, j, err;
 	int out_ports = 0, in_ports = 0;
@@ -1169,8 +1166,8 @@ static int snd_usbmidi_create_endpoints(snd_usb_midi_t* umidi,
 /*
  * Returns MIDIStreaming device capabilities.
  */
-static int snd_usbmidi_get_ms_info(snd_usb_midi_t* umidi,
-			   	   snd_usb_midi_endpoint_info_t* endpoints)
+static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
+			   	   struct snd_usb_midi_endpoint_info* endpoints)
 {
 	struct usb_interface* intf;
 	struct usb_host_interface *hostif;
@@ -1244,7 +1241,7 @@ static int snd_usbmidi_get_ms_info(snd_usb_midi_t* umidi,
  * On Roland devices, use the second alternate setting to be able to use
  * the interrupt input endpoint.
  */
-static void snd_usbmidi_switch_roland_altsetting(snd_usb_midi_t* umidi)
+static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi* umidi)
 {
 	struct usb_interface* intf;
 	struct usb_host_interface *hostif;
@@ -1270,8 +1267,8 @@ static void snd_usbmidi_switch_roland_altsetting(snd_usb_midi_t* umidi)
 /*
  * Try to find any usable endpoints in the interface.
  */
-static int snd_usbmidi_detect_endpoints(snd_usb_midi_t* umidi,
-					snd_usb_midi_endpoint_info_t* endpoint,
+static int snd_usbmidi_detect_endpoints(struct snd_usb_midi* umidi,
+					struct snd_usb_midi_endpoint_info* endpoint,
 					int max_endpoints)
 {
 	struct usb_interface* intf;
@@ -1318,8 +1315,8 @@ static int snd_usbmidi_detect_endpoints(snd_usb_midi_t* umidi,
 /*
  * Detects the endpoints for one-port-per-endpoint protocols.
  */
-static int snd_usbmidi_detect_per_port_endpoints(snd_usb_midi_t* umidi,
-						 snd_usb_midi_endpoint_info_t* endpoints)
+static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi* umidi,
+						 struct snd_usb_midi_endpoint_info* endpoints)
 {
 	int err, i;
 	
@@ -1336,8 +1333,8 @@ static int snd_usbmidi_detect_per_port_endpoints(snd_usb_midi_t* umidi,
 /*
  * Detects the endpoints and ports of Yamaha devices.
  */
-static int snd_usbmidi_detect_yamaha(snd_usb_midi_t* umidi,
-				     snd_usb_midi_endpoint_info_t* endpoint)
+static int snd_usbmidi_detect_yamaha(struct snd_usb_midi* umidi,
+				     struct snd_usb_midi_endpoint_info* endpoint)
 {
 	struct usb_interface* intf;
 	struct usb_host_interface *hostif;
@@ -1375,10 +1372,10 @@ static int snd_usbmidi_detect_yamaha(snd_usb_midi_t* umidi,
 /*
  * Creates the endpoints and their ports for Midiman devices.
  */
-static int snd_usbmidi_create_endpoints_midiman(snd_usb_midi_t* umidi,
-						snd_usb_midi_endpoint_info_t* endpoint)
+static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
+						struct snd_usb_midi_endpoint_info* endpoint)
 {
-	snd_usb_midi_endpoint_info_t ep_info;
+	struct snd_usb_midi_endpoint_info ep_info;
 	struct usb_interface* intf;
 	struct usb_host_interface *hostif;
 	struct usb_interface_descriptor* intfd;
@@ -1458,10 +1455,10 @@ static int snd_usbmidi_create_endpoints_midiman(snd_usb_midi_t* umidi,
 	return 0;
 }
 
-static int snd_usbmidi_create_rawmidi(snd_usb_midi_t* umidi,
+static int snd_usbmidi_create_rawmidi(struct snd_usb_midi* umidi,
 				      int out_ports, int in_ports)
 {
-	snd_rawmidi_t* rmidi;
+	struct snd_rawmidi *rmidi;
 	int err;
 
 	err = snd_rawmidi_new(umidi->chip->card, "USB MIDI",
@@ -1487,18 +1484,18 @@ static int snd_usbmidi_create_rawmidi(snd_usb_midi_t* umidi,
  */
 void snd_usbmidi_input_stop(struct list_head* p)
 {
-	snd_usb_midi_t* umidi;
+	struct snd_usb_midi* umidi;
 	int i;
 
-	umidi = list_entry(p, snd_usb_midi_t, list);
+	umidi = list_entry(p, struct snd_usb_midi, list);
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
-		snd_usb_midi_endpoint_t* ep = &umidi->endpoints[i];
+		struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
 		if (ep->in)
 			usb_kill_urb(ep->in->urb);
 	}
 }
 
-static void snd_usbmidi_input_start_ep(snd_usb_midi_in_endpoint_t* ep)
+static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep)
 {
 	if (ep) {
 		struct urb* urb = ep->urb;
@@ -1512,10 +1509,10 @@ static void snd_usbmidi_input_start_ep(snd_usb_midi_in_endpoint_t* ep)
  */
 void snd_usbmidi_input_start(struct list_head* p)
 {
-	snd_usb_midi_t* umidi;
+	struct snd_usb_midi* umidi;
 	int i;
 
-	umidi = list_entry(p, snd_usb_midi_t, list);
+	umidi = list_entry(p, struct snd_usb_midi, list);
 	for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
 		snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
 }
@@ -1523,12 +1520,12 @@ void snd_usbmidi_input_start(struct list_head* p)
 /*
  * Creates and registers everything needed for a MIDI streaming interface.
  */
-int snd_usb_create_midi_interface(snd_usb_audio_t* chip,
+int snd_usb_create_midi_interface(struct snd_usb_audio* chip,
 				  struct usb_interface* iface,
-				  const snd_usb_audio_quirk_t* quirk)
+				  const struct snd_usb_audio_quirk* quirk)
 {
-	snd_usb_midi_t* umidi;
-	snd_usb_midi_endpoint_info_t endpoints[MIDI_MAX_ENDPOINTS];
+	struct snd_usb_midi* umidi;
+	struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS];
 	int out_ports, in_ports;
 	int i, err;
 
@@ -1551,7 +1548,7 @@ int snd_usb_create_midi_interface(snd_usb_audio_t* chip,
 		break;
 	case QUIRK_MIDI_FIXED_ENDPOINT:
 		memcpy(&endpoints[0], quirk->data,
-		       sizeof(snd_usb_midi_endpoint_info_t));
+		       sizeof(struct snd_usb_midi_endpoint_info));
 		err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
 		break;
 	case QUIRK_MIDI_YAMAHA:
@@ -1560,7 +1557,7 @@ int snd_usb_create_midi_interface(snd_usb_audio_t* chip,
 	case QUIRK_MIDI_MIDIMAN:
 		umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops;
 		memcpy(&endpoints[0], quirk->data,
-		       sizeof(snd_usb_midi_endpoint_info_t));
+		       sizeof(struct snd_usb_midi_endpoint_info));
 		err = 0;
 		break;
 	case QUIRK_MIDI_NOVATION:
@@ -1574,7 +1571,7 @@ int snd_usb_create_midi_interface(snd_usb_audio_t* chip,
 	case QUIRK_MIDI_EMAGIC:
 		umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops;
 		memcpy(&endpoints[0], quirk->data,
-		       sizeof(snd_usb_midi_endpoint_info_t));
+		       sizeof(struct snd_usb_midi_endpoint_info));
 		err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
 		break;
 	case QUIRK_MIDI_MIDITECH:
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index e570d14..678dac2 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -46,18 +46,13 @@
 /* ignore error from controls - for debugging */
 /* #define IGNORE_CTL_ERROR */
 
-typedef struct usb_mixer_build mixer_build_t;
-typedef struct usb_audio_term usb_audio_term_t;
-typedef struct usb_mixer_elem_info usb_mixer_elem_info_t;
-
-
 struct usb_mixer_interface {
-	snd_usb_audio_t *chip;
+	struct snd_usb_audio *chip;
 	unsigned int ctrlif;
 	struct list_head list;
 	unsigned int ignore_ctl_error;
 	struct urb *urb;
-	usb_mixer_elem_info_t **id_elems; /* array[256], indexed by unit id */
+	struct usb_mixer_elem_info **id_elems; /* array[256], indexed by unit id */
 
 	/* Sound Blaster remote control stuff */
 	enum {
@@ -86,21 +81,21 @@ struct usb_audio_term {
 
 struct usbmix_name_map;
 
-struct usb_mixer_build {
-	snd_usb_audio_t *chip;
+struct mixer_build {
+	struct snd_usb_audio *chip;
 	struct usb_mixer_interface *mixer;
 	unsigned char *buffer;
 	unsigned int buflen;
 	DECLARE_BITMAP(unitbitmap, 256);
-	usb_audio_term_t oterm;
+	struct usb_audio_term oterm;
 	const struct usbmix_name_map *map;
 	const struct usbmix_selector_map *selector_map;
 };
 
 struct usb_mixer_elem_info {
 	struct usb_mixer_interface *mixer;
-	usb_mixer_elem_info_t *next_id_elem; /* list of controls with same id */
-	snd_ctl_elem_id_t *elem_id;
+	struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */
+	struct snd_ctl_elem_id *elem_id;
 	unsigned int id;
 	unsigned int control;	/* CS or ICN (high byte) */
 	unsigned int cmask; /* channel mask bitmap: 0 = master */
@@ -179,7 +174,7 @@ enum {
 #include "usbmixer_maps.c"
 
 /* get the mapped name if the unit matches */
-static int check_mapped_name(mixer_build_t *state, int unitid, int control, char *buf, int buflen)
+static int check_mapped_name(struct mixer_build *state, int unitid, int control, char *buf, int buflen)
 {
 	const struct usbmix_name_map *p;
 
@@ -197,7 +192,7 @@ static int check_mapped_name(mixer_build_t *state, int unitid, int control, char
 }
 
 /* check whether the control should be ignored */
-static int check_ignored_ctl(mixer_build_t *state, int unitid, int control)
+static int check_ignored_ctl(struct mixer_build *state, int unitid, int control)
 {
 	const struct usbmix_name_map *p;
 
@@ -214,7 +209,7 @@ static int check_ignored_ctl(mixer_build_t *state, int unitid, int control)
 }
 
 /* get the mapped selector source name */
-static int check_mapped_selector_name(mixer_build_t *state, int unitid,
+static int check_mapped_selector_name(struct mixer_build *state, int unitid,
 				      int index, char *buf, int buflen)
 {
 	const struct usbmix_selector_map *p;
@@ -231,7 +226,7 @@ static int check_mapped_selector_name(mixer_build_t *state, int unitid,
 /*
  * find an audio control unit with the given unit id
  */
-static void *find_audio_control_unit(mixer_build_t *state, unsigned char unit)
+static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit)
 {
 	unsigned char *p;
 
@@ -248,7 +243,7 @@ static void *find_audio_control_unit(mixer_build_t *state, unsigned char unit)
 /*
  * copy a string with the given id
  */
-static int snd_usb_copy_string_desc(mixer_build_t *state, int index, char *buf, int maxlen)
+static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen)
 {
 	int len = usb_string(state->chip->dev, index, buf, maxlen - 1);
 	buf[len] = 0;
@@ -258,7 +253,7 @@ static int snd_usb_copy_string_desc(mixer_build_t *state, int index, char *buf,
 /*
  * convert from the byte/word on usb descriptor to the zero-based integer
  */
-static int convert_signed_value(usb_mixer_elem_info_t *cval, int val)
+static int convert_signed_value(struct usb_mixer_elem_info *cval, int val)
 {
 	switch (cval->val_type) {
 	case USB_MIXER_BOOLEAN:
@@ -288,7 +283,7 @@ static int convert_signed_value(usb_mixer_elem_info_t *cval, int val)
 /*
  * convert from the zero-based int to the byte/word for usb descriptor
  */
-static int convert_bytes_value(usb_mixer_elem_info_t *cval, int val)
+static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val)
 {
 	switch (cval->val_type) {
 	case USB_MIXER_BOOLEAN:
@@ -305,7 +300,7 @@ static int convert_bytes_value(usb_mixer_elem_info_t *cval, int val)
 	return 0; /* not reached */
 }
 
-static int get_relative_value(usb_mixer_elem_info_t *cval, int val)
+static int get_relative_value(struct usb_mixer_elem_info *cval, int val)
 {
 	if (! cval->res)
 		cval->res = 1;
@@ -317,7 +312,7 @@ static int get_relative_value(usb_mixer_elem_info_t *cval, int val)
 		return (val - cval->min) / cval->res;
 }
 
-static int get_abs_value(usb_mixer_elem_info_t *cval, int val)
+static int get_abs_value(struct usb_mixer_elem_info *cval, int val)
 {
 	if (val < 0)
 		return cval->min;
@@ -335,7 +330,7 @@ static int get_abs_value(usb_mixer_elem_info_t *cval, int val)
  * retrieve a mixer value
  */
 
-static int get_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, int *value_ret)
+static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret)
 {
 	unsigned char buf[2];
 	int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
@@ -357,13 +352,13 @@ static int get_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, i
 	return -EINVAL;
 }
 
-static int get_cur_ctl_value(usb_mixer_elem_info_t *cval, int validx, int *value)
+static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value)
 {
 	return get_ctl_value(cval, GET_CUR, validx, value);
 }
 
 /* channel = 0: master, 1 = first channel */
-static inline int get_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, int *value)
+static inline int get_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int *value)
 {
 	return get_ctl_value(cval, GET_CUR, (cval->control << 8) | channel, value);
 }
@@ -372,7 +367,7 @@ static inline int get_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, in
  * set a mixer value
  */
 
-static int set_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, int value_set)
+static int set_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int value_set)
 {
 	unsigned char buf[2];
 	int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
@@ -394,12 +389,12 @@ static int set_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, i
 	return -EINVAL;
 }
 
-static int set_cur_ctl_value(usb_mixer_elem_info_t *cval, int validx, int value)
+static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value)
 {
 	return set_ctl_value(cval, SET_CUR, validx, value);
 }
 
-static inline int set_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, int value)
+static inline int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, int value)
 {
 	return set_ctl_value(cval, SET_CUR, (cval->control << 8) | channel, value);
 }
@@ -409,7 +404,7 @@ static inline int set_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, in
  * parser routines begin here...
  */
 
-static int parse_audio_unit(mixer_build_t *state, int unitid);
+static int parse_audio_unit(struct mixer_build *state, int unitid);
 
 
 /*
@@ -430,9 +425,9 @@ static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_ou
  * if failed, give up and free the control instance.
  */
 
-static int add_control_to_empty(mixer_build_t *state, snd_kcontrol_t *kctl)
+static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl)
 {
-	usb_mixer_elem_info_t *cval = kctl->private_data;
+	struct usb_mixer_elem_info *cval = kctl->private_data;
 	int err;
 
 	while (snd_ctl_find_id(state->chip->card, &kctl->id))
@@ -496,7 +491,7 @@ static struct iterm_name_combo {
 	{ 0 },
 };
 
-static int get_term_name(mixer_build_t *state, usb_audio_term_t *iterm,
+static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm,
 			 unsigned char *name, int maxlen, int term_only)
 {
 	struct iterm_name_combo *names;
@@ -546,7 +541,7 @@ static int get_term_name(mixer_build_t *state, usb_audio_term_t *iterm,
  * parse the source unit recursively until it reaches to a terminal
  * or a branched unit.
  */
-static int check_input_term(mixer_build_t *state, int id, usb_audio_term_t *term)
+static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term)
 {
 	unsigned char *p1;
 
@@ -621,7 +616,7 @@ static struct usb_feature_control_info audio_feature_info[] = {
 
 
 /* private_free callback */
-static void usb_mixer_elem_free(snd_kcontrol_t *kctl)
+static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
 {
 	kfree(kctl->private_data);
 	kctl->private_data = NULL;
@@ -635,7 +630,7 @@ static void usb_mixer_elem_free(snd_kcontrol_t *kctl)
 /*
  * retrieve the minimum and maximum values for the specified control
  */
-static int get_min_max(usb_mixer_elem_info_t *cval, int default_min)
+static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
 {
 	/* for failsafe */
 	cval->min = default_min;
@@ -683,9 +678,9 @@ static int get_min_max(usb_mixer_elem_info_t *cval, int default_min)
 
 
 /* get a feature/mixer unit info */
-static int mixer_ctl_feature_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 
 	if (cval->val_type == USB_MIXER_BOOLEAN ||
 	    cval->val_type == USB_MIXER_INV_BOOLEAN)
@@ -707,9 +702,9 @@ static int mixer_ctl_feature_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
 }
 
 /* get the current value from feature/mixer unit */
-static int mixer_ctl_feature_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int c, cnt, val, err;
 
 	if (cval->cmask) {
@@ -748,9 +743,9 @@ static int mixer_ctl_feature_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /* put the current value to feature/mixer unit */
-static int mixer_ctl_feature_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int c, cnt, val, oval, err;
 	int changed = 0;
 
@@ -791,7 +786,7 @@ static int mixer_ctl_feature_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 	return changed;
 }
 
-static snd_kcontrol_new_t usb_feature_unit_ctl = {
+static struct snd_kcontrol_new usb_feature_unit_ctl = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "", /* will be filled later manually */
 	.info = mixer_ctl_feature_info,
@@ -804,15 +799,15 @@ static snd_kcontrol_new_t usb_feature_unit_ctl = {
  * build a feature control
  */
 
-static void build_feature_ctl(mixer_build_t *state, unsigned char *desc,
+static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
 			      unsigned int ctl_mask, int control,
-			      usb_audio_term_t *iterm, int unitid)
+			      struct usb_audio_term *iterm, int unitid)
 {
 	unsigned int len = 0;
 	int mapped_name = 0;
 	int nameid = desc[desc[0] - 1];
-	snd_kcontrol_t *kctl;
-	usb_mixer_elem_info_t *cval;
+	struct snd_kcontrol *kctl;
+	struct usb_mixer_elem_info *cval;
 
 	control++; /* change from zero-based to 1-based value */
 
@@ -928,10 +923,10 @@ static void build_feature_ctl(mixer_build_t *state, unsigned char *desc,
  *
  * most of controlls are defined here.
  */
-static int parse_audio_feature_unit(mixer_build_t *state, int unitid, unsigned char *ftr)
+static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsigned char *ftr)
 {
 	int channels, i, j;
-	usb_audio_term_t iterm;
+	struct usb_audio_term iterm;
 	unsigned int master_bits, first_ch_bits;
 	int err, csize;
 
@@ -984,15 +979,15 @@ static int parse_audio_feature_unit(mixer_build_t *state, int unitid, unsigned c
  * input channel number (zero based) is given in control field instead.
  */
 
-static void build_mixer_unit_ctl(mixer_build_t *state, unsigned char *desc,
+static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc,
 				 int in_pin, int in_ch, int unitid,
-				 usb_audio_term_t *iterm)
+				 struct usb_audio_term *iterm)
 {
-	usb_mixer_elem_info_t *cval;
+	struct usb_mixer_elem_info *cval;
 	unsigned int input_pins = desc[4];
 	unsigned int num_outs = desc[5 + input_pins];
 	unsigned int i, len;
-	snd_kcontrol_t *kctl;
+	struct snd_kcontrol *kctl;
 
 	if (check_ignored_ctl(state, unitid, 0))
 		return;
@@ -1039,9 +1034,9 @@ static void build_mixer_unit_ctl(mixer_build_t *state, unsigned char *desc,
 /*
  * parse a mixer unit
  */
-static int parse_audio_mixer_unit(mixer_build_t *state, int unitid, unsigned char *desc)
+static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, unsigned char *desc)
 {
-	usb_audio_term_t iterm;
+	struct usb_audio_term iterm;
 	int input_pins, num_ins, num_outs;
 	int pin, ich, err;
 
@@ -1089,9 +1084,9 @@ static int parse_audio_mixer_unit(mixer_build_t *state, int unitid, unsigned cha
  */
 
 /* get callback for processing/extension unit */
-static int mixer_ctl_procunit_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int err, val;
 
 	err = get_cur_ctl_value(cval, cval->control << 8, &val);
@@ -1107,9 +1102,9 @@ static int mixer_ctl_procunit_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /* put callback for processing/extension unit */
-static int mixer_ctl_procunit_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int val, oval, err;
 
 	err = get_cur_ctl_value(cval, cval->control << 8, &oval);
@@ -1128,7 +1123,7 @@ static int mixer_ctl_procunit_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /* alsa control interface for processing/extension unit */
-static snd_kcontrol_new_t mixer_procunit_ctl = {
+static struct snd_kcontrol_new mixer_procunit_ctl = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "", /* will be filled later */
 	.info = mixer_ctl_feature_info,
@@ -1205,11 +1200,11 @@ static struct procunit_info procunits[] = {
 /*
  * build a processing/extension unit
  */
-static int build_audio_procunit(mixer_build_t *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name)
+static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name)
 {
 	int num_ins = dsc[6];
-	usb_mixer_elem_info_t *cval;
-	snd_kcontrol_t *kctl;
+	struct usb_mixer_elem_info *cval;
+	struct snd_kcontrol *kctl;
 	int i, err, nameid, type, len;
 	struct procunit_info *info;
 	struct procunit_value_info *valinfo;
@@ -1297,12 +1292,12 @@ static int build_audio_procunit(mixer_build_t *state, int unitid, unsigned char
 }
 
 
-static int parse_audio_processing_unit(mixer_build_t *state, int unitid, unsigned char *desc)
+static int parse_audio_processing_unit(struct mixer_build *state, int unitid, unsigned char *desc)
 {
 	return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit");
 }
 
-static int parse_audio_extension_unit(mixer_build_t *state, int unitid, unsigned char *desc)
+static int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc)
 {
 	return build_audio_procunit(state, unitid, desc, NULL, "Extension Unit");
 }
@@ -1315,9 +1310,9 @@ static int parse_audio_extension_unit(mixer_build_t *state, int unitid, unsigned
 /* info callback for selector unit
  * use an enumerator type for routing
  */
-static int mixer_ctl_selector_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	char **itemlist = (char **)kcontrol->private_value;
 
 	snd_assert(itemlist, return -EINVAL);
@@ -1331,9 +1326,9 @@ static int mixer_ctl_selector_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
 }
 
 /* get callback for selector unit */
-static int mixer_ctl_selector_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int val, err;
 
 	err = get_cur_ctl_value(cval, 0, &val);
@@ -1350,9 +1345,9 @@ static int mixer_ctl_selector_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /* put callback for selector unit */
-static int mixer_ctl_selector_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
-	usb_mixer_elem_info_t *cval = kcontrol->private_data;
+	struct usb_mixer_elem_info *cval = kcontrol->private_data;
 	int val, oval, err;
 
 	err = get_cur_ctl_value(cval, 0, &oval);
@@ -1371,7 +1366,7 @@ static int mixer_ctl_selector_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /* alsa control interface for selector unit */
-static snd_kcontrol_new_t mixer_selectunit_ctl = {
+static struct snd_kcontrol_new mixer_selectunit_ctl = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "", /* will be filled later */
 	.info = mixer_ctl_selector_info,
@@ -1383,12 +1378,12 @@ static snd_kcontrol_new_t mixer_selectunit_ctl = {
 /* private free callback.
  * free both private_data and private_value
  */
-static void usb_mixer_selector_elem_free(snd_kcontrol_t *kctl)
+static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl)
 {
 	int i, num_ins = 0;
 
 	if (kctl->private_data) {
-		usb_mixer_elem_info_t *cval = kctl->private_data;
+		struct usb_mixer_elem_info *cval = kctl->private_data;
 		num_ins = cval->max;
 		kfree(cval);
 		kctl->private_data = NULL;
@@ -1405,13 +1400,13 @@ static void usb_mixer_selector_elem_free(snd_kcontrol_t *kctl)
 /*
  * parse a selector unit
  */
-static int parse_audio_selector_unit(mixer_build_t *state, int unitid, unsigned char *desc)
+static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsigned char *desc)
 {
 	unsigned int num_ins = desc[4];
 	unsigned int i, nameid, len;
 	int err;
-	usb_mixer_elem_info_t *cval;
-	snd_kcontrol_t *kctl;
+	struct usb_mixer_elem_info *cval;
+	struct snd_kcontrol *kctl;
 	char **namelist;
 
 	if (! num_ins || desc[0] < 6 + num_ins) {
@@ -1452,7 +1447,7 @@ static int parse_audio_selector_unit(mixer_build_t *state, int unitid, unsigned
 	}
 #define MAX_ITEM_NAME_LEN	64
 	for (i = 0; i < num_ins; i++) {
-		usb_audio_term_t iterm;
+		struct usb_audio_term iterm;
 		len = 0;
 		namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL);
 		if (! namelist[i]) {
@@ -1511,7 +1506,7 @@ static int parse_audio_selector_unit(mixer_build_t *state, int unitid, unsigned
  * parse an audio unit recursively
  */
 
-static int parse_audio_unit(mixer_build_t *state, int unitid)
+static int parse_audio_unit(struct mixer_build *state, int unitid)
 {
 	unsigned char *p1;
 
@@ -1556,7 +1551,7 @@ static void snd_usb_mixer_free(struct usb_mixer_interface *mixer)
 	kfree(mixer);
 }
 
-static int snd_usb_mixer_dev_free(snd_device_t *device)
+static int snd_usb_mixer_dev_free(struct snd_device *device)
 {
 	struct usb_mixer_interface *mixer = device->device_data;
 	snd_usb_mixer_free(mixer);
@@ -1571,7 +1566,7 @@ static int snd_usb_mixer_dev_free(snd_device_t *device)
 static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
 {
 	unsigned char *desc;
-	mixer_build_t state;
+	struct mixer_build state;
 	int err;
 	const struct usbmix_ctl_map *map;
 	struct usb_host_interface *hostif;
@@ -1611,7 +1606,7 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
 static void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer,
 				    int unitid)
 {
-	usb_mixer_elem_info_t *info;
+	struct usb_mixer_elem_info *info;
 
 	for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem)
 		snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
@@ -1725,7 +1720,7 @@ static void snd_usb_soundblaster_remote_complete(struct urb *urb,
 	wake_up(&mixer->rc_waitq);
 }
 
-static int snd_usb_sbrc_hwdep_open(snd_hwdep_t *hw, struct file *file)
+static int snd_usb_sbrc_hwdep_open(struct snd_hwdep *hw, struct file *file)
 {
 	struct usb_mixer_interface *mixer = hw->private_data;
 
@@ -1734,7 +1729,7 @@ static int snd_usb_sbrc_hwdep_open(snd_hwdep_t *hw, struct file *file)
 	return 0;
 }
 
-static int snd_usb_sbrc_hwdep_release(snd_hwdep_t *hw, struct file *file)
+static int snd_usb_sbrc_hwdep_release(struct snd_hwdep *hw, struct file *file)
 {
 	struct usb_mixer_interface *mixer = hw->private_data;
 
@@ -1743,7 +1738,7 @@ static int snd_usb_sbrc_hwdep_release(snd_hwdep_t *hw, struct file *file)
 	return 0;
 }
 
-static long snd_usb_sbrc_hwdep_read(snd_hwdep_t *hw, char __user *buf,
+static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
 				     long count, loff_t *offset)
 {
 	struct usb_mixer_interface *mixer = hw->private_data;
@@ -1763,7 +1758,7 @@ static long snd_usb_sbrc_hwdep_read(snd_hwdep_t *hw, char __user *buf,
 	return err < 0 ? err : count;
 }
 
-static unsigned int snd_usb_sbrc_hwdep_poll(snd_hwdep_t *hw, struct file *file,
+static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
 					    poll_table *wait)
 {
 	struct usb_mixer_interface *mixer = hw->private_data;
@@ -1774,7 +1769,7 @@ static unsigned int snd_usb_sbrc_hwdep_poll(snd_hwdep_t *hw, struct file *file,
 
 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
 {
-	snd_hwdep_t *hwdep;
+	struct snd_hwdep *hwdep;
 	int err, len;
 
 	switch (mixer->chip->usb_id) {
@@ -1825,7 +1820,7 @@ static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
 	return 0;
 }
 
-static int snd_audigy2nx_led_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int snd_audigy2nx_led_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 1;
@@ -1834,7 +1829,7 @@ static int snd_audigy2nx_led_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t
 	return 0;
 }
 
-static int snd_audigy2nx_led_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
 	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 	int index = kcontrol->private_value;
@@ -1843,7 +1838,7 @@ static int snd_audigy2nx_led_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 	return 0;
 }
 
-static int snd_audigy2nx_led_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 {
 	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 	int index = kcontrol->private_value;
@@ -1863,7 +1858,7 @@ static int snd_audigy2nx_led_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 	return changed;
 }
 
-static snd_kcontrol_new_t snd_audigy2nx_controls[] = {
+static struct snd_kcontrol_new snd_audigy2nx_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "CMSS LED Switch",
@@ -1904,8 +1899,8 @@ static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
 	return 0;
 }
 
-static void snd_audigy2nx_proc_read(snd_info_entry_t *entry,
-				    snd_info_buffer_t *buffer)
+static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
+				    struct snd_info_buffer *buffer)
 {
 	static const struct {
 		int unitid;
@@ -1935,9 +1930,9 @@ static void snd_audigy2nx_proc_read(snd_info_entry_t *entry,
 	}
 }
 
-int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif)
+int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif)
 {
-	static snd_device_ops_t dev_ops = {
+	static struct snd_device_ops dev_ops = {
 		.dev_free = snd_usb_mixer_dev_free
 	};
 	struct usb_mixer_interface *mixer;
@@ -1967,7 +1962,7 @@ int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif)
 		goto _error;
 
 	if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020)) {
-		snd_info_entry_t *entry;
+		struct snd_info_entry *entry;
 
 		if ((err = snd_audigy2nx_controls_create(mixer)) < 0)
 			goto _error;
diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index ba506c3..6190ada 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -45,7 +45,7 @@
 
 #define YAMAHA_DEVICE(id, name) { \
 	USB_DEVICE(0x0499, id), \
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) { \
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { \
 		.vendor_name = "Yamaha", \
 		.product_name = name, \
 		.ifnum = QUIRK_ANY_INTERFACE, \
@@ -54,7 +54,7 @@
 }
 #define YAMAHA_INTERFACE(id, intf, name) { \
 	USB_DEVICE_VENDOR_SPEC(0x0499, id), \
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) { \
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { \
 		.vendor_name = "Yamaha", \
 		.product_name = name, \
 		.ifnum = intf, \
@@ -149,12 +149,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
  */
 {
 	USB_DEVICE(0x0582, 0x0000),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "UA-100",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
@@ -192,7 +192,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0007,
 					.in_cables  = 0x0007
 				}
@@ -205,12 +205,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0002),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-4",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -222,7 +222,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x000f,
 					.in_cables  = 0x000f
 				}
@@ -235,12 +235,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0003),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "SC-8850",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -252,7 +252,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x003f,
 					.in_cables  = 0x003f
 				}
@@ -265,12 +265,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0004),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "U-8",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -282,7 +282,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0005,
 					.in_cables  = 0x0005
 				}
@@ -296,12 +296,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* a later revision uses ID 0x0099 */
 	USB_DEVICE(0x0582, 0x0005),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-2",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -313,7 +313,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0003,
 					.in_cables  = 0x0003
 				}
@@ -326,12 +326,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0007),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "SC-8820",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -343,7 +343,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0013,
 					.in_cables  = 0x0013
 				}
@@ -356,12 +356,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0008),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "PC-300",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -373,7 +373,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0001,
 					.in_cables  = 0x0001
 				}
@@ -387,12 +387,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* a later revision uses ID 0x009d */
 	USB_DEVICE(0x0582, 0x0009),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-1",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -404,7 +404,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0001,
 					.in_cables  = 0x0001
 				}
@@ -417,12 +417,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x000b),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "SK-500",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -434,7 +434,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0013,
 					.in_cables  = 0x0013
 				}
@@ -449,12 +449,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	/* thanks to Emiliano Grilli <emillo@libero.it>
 	 * for helping researching this data */
 	USB_DEVICE(0x0582, 0x000c),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "SC-D70",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
@@ -492,7 +492,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0007,
 					.in_cables  = 0x0007
 				}
@@ -513,12 +513,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * the 96kHz sample rate.
 	 */
 	USB_DEVICE(0x0582, 0x0010),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UA-5",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 1,
 				.type = QUIRK_AUDIO_STANDARD_INTERFACE
@@ -536,12 +536,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0013 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0012),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "XV-5050",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -550,12 +550,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0015 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0014),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-880",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x01ff,
 			.in_cables  = 0x01ff
 		}
@@ -564,12 +564,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0017 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0016),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "SD-90",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -581,7 +581,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x000f,
 					.in_cables  = 0x000f
 				}
@@ -595,12 +595,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x001c when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x001b),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "MMP-2",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -612,7 +612,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 2,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0001,
 					.in_cables  = 0x0001
 				}
@@ -626,12 +626,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x001e when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x001d),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "V-SYNTH",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -640,12 +640,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0024 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0023),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-550",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x003f,
 			.in_cables  = 0x003f
 		}
@@ -658,23 +658,57 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * and no MIDI.
 	 */
 	USB_DEVICE(0x0582, 0x0025),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UA-20",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_IGNORE_INTERFACE
+			},
 			{
 				.ifnum = 1,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.format = SNDRV_PCM_FORMAT_S24_3LE,
+					.channels = 2,
+					.iface = 1,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = 0,
+					.endpoint = 0x01,
+					.ep_attr = 0x01,
+					.rates = SNDRV_PCM_RATE_CONTINUOUS,
+					.rate_min = 44100,
+					.rate_max = 44100,
+				}
 			},
 			{
 				.ifnum = 2,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.format = SNDRV_PCM_FORMAT_S24_3LE,
+					.channels = 2,
+					.iface = 2,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = 0,
+					.endpoint = 0x82,
+					.ep_attr = 0x01,
+					.rates = SNDRV_PCM_RATE_CONTINUOUS,
+					.rate_min = 44100,
+					.rate_max = 44100,
+				}
 			},
 			{
 				.ifnum = 3,
-				.type = QUIRK_MIDI_STANDARD_INTERFACE
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = & (const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
 			},
 			{
 				.ifnum = -1
@@ -685,12 +719,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0028 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0027),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "SD-20",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0007
 		}
@@ -699,12 +733,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x002a when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0029),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "SD-80",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x000f,
 			.in_cables  = 0x000f
 		}
@@ -717,12 +751,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * but offers only 16-bit PCM and no MIDI.
 	 */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x002b),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UA-700",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 1,
 				.type = QUIRK_AUDIO_EDIROL_UA700_UA25
@@ -744,12 +778,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x002e when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x002d),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "XV-2020",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -758,12 +792,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0030 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x002f),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "VariOS",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0007,
 			.in_cables  = 0x0007
 		}
@@ -772,12 +806,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0034 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0033),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "PCR",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0007
 		}
@@ -790,12 +824,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * later revisions use IDs 0x0054 and 0x00a2.
 	 */
 	USB_DEVICE(0x0582, 0x0037),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "Digital Piano",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -808,12 +842,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * and no MIDI.
 	 */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x003b),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "BOSS",
 		.product_name = "GS-10",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = & (const snd_usb_audio_quirk_t[]) {
+		.data = & (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 1,
 				.type = QUIRK_AUDIO_STANDARD_INTERFACE
@@ -835,12 +869,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0041 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0040),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "GI-20",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -849,12 +883,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0043 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0042),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "RS-70",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -862,12 +896,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0044),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "UA-1000",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 1,
 				.type = QUIRK_AUDIO_EDIROL_UA1000
@@ -879,7 +913,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 3,
 				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0003,
 					.in_cables  = 0x0003
 				}
@@ -893,12 +927,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x004a when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0048),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UR-80",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0007
 		}
@@ -908,12 +942,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x004f when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x004d),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "PCR-A",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0007
 		}
@@ -925,12 +959,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * is standard compliant, but has only 16-bit PCM.
 	 */
 	USB_DEVICE(0x0582, 0x0050),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UA-3FX",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 1,
 				.type = QUIRK_AUDIO_STANDARD_INTERFACE
@@ -947,7 +981,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x0582, 0x0052),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UM-1SX",
 		.ifnum = 0,
@@ -958,12 +992,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0067 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0065),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "PCR-1",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0003
 		}
@@ -972,12 +1006,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x006b when not in "Advanced Driver" mode */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x006a),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "SP-606",
 		.ifnum = 3,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -986,12 +1020,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x006e when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x006d),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		.product_name = "FANTOM-X",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1004,12 +1038,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * offers only 16-bit PCM at 44.1 kHz and no MIDI.
 	 */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x0074),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "EDIROL",
 		.product_name = "UA-25",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = (const snd_usb_audio_quirk_t[]) {
+		.data = (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_AUDIO_EDIROL_UA700_UA25
@@ -1031,12 +1065,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x0076 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0075),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "BOSS",
 		.product_name = "DR-880",
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1045,12 +1079,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* has ID 0x007b when not in "Advanced Driver" mode */
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x007a),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Roland",
 		/* "RD" or "RD-700SX"? */
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0003
 		}
@@ -1066,12 +1100,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * compliant USB MIDI ports for external MIDI and controls.
 	 */
 	USB_DEVICE_VENDOR_SPEC(0x06f8, 0xb000),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Hercules",
 		.product_name = "DJ Console (WE)",
 		.ifnum = 4,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables = 0x0001
 		}
@@ -1090,12 +1124,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 /* Midiman/M-Audio devices */
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1002),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 2x2",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0003,
 			.in_cables  = 0x0003
 		}
@@ -1103,12 +1137,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1011),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 1x1",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1116,12 +1150,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1015),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "Keystation",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1129,12 +1163,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1021),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 4x4",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x000f,
 			.in_cables  = 0x000f
 		}
@@ -1147,12 +1181,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	 * Thanks to Olaf Giesbrecht <Olaf_Giesbrecht@yahoo.de>
 	 */
 	USB_DEVICE_VER(0x0763, 0x1031, 0x0100, 0x0109),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 8x8",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x01ff,
 			.in_cables  = 0x01ff
 		}
@@ -1160,12 +1194,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1033),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 8x8",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x01ff,
 			.in_cables  = 0x01ff
 		}
@@ -1173,12 +1207,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x1041),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "MidiSport 2x4",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x000f,
 			.in_cables  = 0x0003
 		}
@@ -1186,12 +1220,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x2001),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "Quattro",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = & (const snd_usb_audio_quirk_t[]) {
+		.data = & (const struct snd_usb_audio_quirk[]) {
 			/*
 			 * Interfaces 0-2 are "Windows-compatible", 16-bit only,
 			 * and share endpoints with the other interfaces.
@@ -1237,7 +1271,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 9,
 				.type = QUIRK_MIDI_MIDIMAN,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0001,
 					.in_cables  = 0x0001
 				}
@@ -1250,12 +1284,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x2003),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "AudioPhile",
 		.ifnum = 6,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1263,12 +1297,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x2008),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "Ozone",
 		.ifnum = 3,
 		.type = QUIRK_MIDI_MIDIMAN,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x0001,
 			.in_cables  = 0x0001
 		}
@@ -1276,12 +1310,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0763, 0x200d),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "M-Audio",
 		.product_name = "OmniStudio",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = & (const snd_usb_audio_quirk_t[]) {
+		.data = & (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_IGNORE_INTERFACE
@@ -1321,7 +1355,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			{
 				.ifnum = 9,
 				.type = QUIRK_MIDI_MIDIMAN,
-				.data = & (const snd_usb_midi_endpoint_info_t) {
+				.data = & (const struct snd_usb_midi_endpoint_info) {
 					.out_cables = 0x0001,
 					.in_cables  = 0x0001
 				}
@@ -1342,12 +1376,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	.idVendor = 0x07fd,
 	.idProduct = 0x0001,
 	.bDeviceSubClass = 2,
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "MOTU",
 		.product_name = "Fastlane",
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-		.data = & (const snd_usb_audio_quirk_t[]) {
+		.data = & (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
 				.type = QUIRK_MIDI_RAW
@@ -1366,7 +1400,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 {
 	/* Creative Sound Blaster MP3+ */
 	USB_DEVICE(0x041e, 0x3010),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Creative Labs",
 		.product_name = "Sound Blaster MP3+",
 		.ifnum = QUIRK_NO_INTERFACE
@@ -1377,12 +1411,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 /* Emagic devices */
 {
 	USB_DEVICE(0x086a, 0x0001),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Emagic",
 		/* .product_name = "Unitor8", */
 		.ifnum = 2,
 		.type = QUIRK_MIDI_EMAGIC,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x80ff,
 			.in_cables  = 0x80ff
 		}
@@ -1390,12 +1424,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x086a, 0x0002),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Emagic",
 		/* .product_name = "AMT8", */
 		.ifnum = 2,
 		.type = QUIRK_MIDI_EMAGIC,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x80ff,
 			.in_cables  = 0x80ff
 		}
@@ -1403,12 +1437,12 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x086a, 0x0003),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Emagic",
 		/* .product_name = "MT4", */
 		.ifnum = 2,
 		.type = QUIRK_MIDI_EMAGIC,
-		.data = & (const snd_usb_midi_endpoint_info_t) {
+		.data = & (const struct snd_usb_midi_endpoint_info) {
 			.out_cables = 0x800f,
 			.in_cables  = 0x8003
 		}
@@ -1418,7 +1452,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 /* TerraTec devices */
 {
 	USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "TerraTec",
 		.product_name = "PHASE 26",
 		.ifnum = 3,
@@ -1427,7 +1461,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0013),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "TerraTec",
 		.product_name = "PHASE 26",
 		.ifnum = 3,
@@ -1438,7 +1472,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 /* Novation EMS devices */
 {
 	USB_DEVICE_VENDOR_SPEC(0x1235, 0x0001),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Novation",
 		.product_name = "ReMOTE Audio/XStation",
 		.ifnum = 4,
@@ -1447,7 +1481,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x1235, 0x0002),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Novation",
 		.product_name = "Speedio",
 		.ifnum = 3,
@@ -1456,7 +1490,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE_VENDOR_SPEC(0x1235, 0x4661),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Novation",
 		.product_name = "ReMOTE25",
 		.ifnum = 0,
@@ -1466,7 +1500,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 
 {
 	USB_DEVICE(0x4752, 0x0011),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Miditech",
 		.product_name = "Midistart-2",
 		.ifnum = 0,
@@ -1475,7 +1509,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 },
 {
 	USB_DEVICE(0x7104, 0x2202),
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Miditech",
 		.product_name = "MidiStudio-2",
 		.ifnum = 0,
@@ -1492,7 +1526,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		       USB_DEVICE_ID_MATCH_INT_SUBCLASS,
 	.bInterfaceClass = USB_CLASS_AUDIO,
 	.bInterfaceSubClass = USB_SUBCLASS_MIDI_STREAMING,
-	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_MIDI_STANDARD_INTERFACE
 	}
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 8abe086..4b52d18 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -31,7 +31,7 @@
 #include "usbusx2y.h"
 #include "usX2Yhwdep.h"
 
-int usX2Y_hwdep_pcm_new(snd_card_t* card);
+int usX2Y_hwdep_pcm_new(struct snd_card *card);
 
 
 static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type)
@@ -49,7 +49,7 @@ static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsign
 	offset = area->vm_pgoff << PAGE_SHIFT;
 	offset += address - area->vm_start;
 	snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
-	vaddr = (char*)((usX2Ydev_t*)area->vm_private_data)->us428ctls_sharedmem + offset;
+	vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset;
 	page = virt_to_page(vaddr);
 	get_page(page);
 	snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset);
@@ -64,27 +64,27 @@ static struct vm_operations_struct us428ctls_vm_ops = {
 	.nopage = snd_us428ctls_vm_nopage,
 };
 
-static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area)
+static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
 {
 	unsigned long	size = (unsigned long)(area->vm_end - area->vm_start);
-	usX2Ydev_t	*us428 = (usX2Ydev_t*)hw->private_data;
+	struct usX2Ydev	*us428 = hw->private_data;
 
 	// FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
 	// so as long as the device isn't fully initialised yet we return -EBUSY here.
- 	if (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+ 	if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
 		return -EBUSY;
 
 	/* if userspace tries to mmap beyond end of our buffer, fail */ 
-        if (size > ((PAGE_SIZE - 1 + sizeof(us428ctls_sharedmem_t)) / PAGE_SIZE) * PAGE_SIZE) {
-		snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(us428ctls_sharedmem_t)); 
+        if (size > PAGE_ALIGN(sizeof(struct us428ctls_sharedmem))) {
+		snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(struct us428ctls_sharedmem)); 
                 return -EINVAL;
 	}
 
 	if (!us428->us428ctls_sharedmem) {
 		init_waitqueue_head(&us428->us428ctls_wait_queue_head);
-		if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(us428ctls_sharedmem_t), GFP_KERNEL)))
+		if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(struct us428ctls_sharedmem), GFP_KERNEL)))
 			return -ENOMEM;
-		memset(us428->us428ctls_sharedmem, -1, sizeof(us428ctls_sharedmem_t));
+		memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem));
 		us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
 	}
 	area->vm_ops = &us428ctls_vm_ops;
@@ -93,11 +93,11 @@ static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_are
 	return 0;
 }
 
-static unsigned int snd_us428ctls_poll(snd_hwdep_t *hw, struct file *file, poll_table *wait)
+static unsigned int snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
 {
 	unsigned int	mask = 0;
-	usX2Ydev_t	*us428 = (usX2Ydev_t*)hw->private_data;
-	us428ctls_sharedmem_t *shm = us428->us428ctls_sharedmem;
+	struct usX2Ydev	*us428 = hw->private_data;
+	struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
 	if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
 		return POLLHUP;
 
@@ -110,26 +110,28 @@ static unsigned int snd_us428ctls_poll(snd_hwdep_t *hw, struct file *file, poll_
 }
 
 
-static int snd_usX2Y_hwdep_open(snd_hwdep_t *hw, struct file *file)
+static int snd_usX2Y_hwdep_open(struct snd_hwdep *hw, struct file *file)
 {
 	return 0;
 }
 
-static int snd_usX2Y_hwdep_release(snd_hwdep_t *hw, struct file *file)
+static int snd_usX2Y_hwdep_release(struct snd_hwdep *hw, struct file *file)
 {
 	return 0;
 }
 
-static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info)
+static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
+				      struct snd_hwdep_dsp_status *info)
 {
 	static char *type_ids[USX2Y_TYPE_NUMS] = {
 		[USX2Y_TYPE_122] = "us122",
 		[USX2Y_TYPE_224] = "us224",
 		[USX2Y_TYPE_428] = "us428",
 	};
+	struct usX2Ydev	*us428 = hw->private_data;
 	int id = -1;
 
-	switch (le16_to_cpu(((usX2Ydev_t*)hw->private_data)->chip.dev->descriptor.idProduct)) {
+	switch (le16_to_cpu(us428->chip.dev->descriptor.idProduct)) {
 	case USB_ID_US122:
 		id = USX2Y_TYPE_122;
 		break;
@@ -144,35 +146,35 @@ static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *i
 		return -ENODEV;
 	strcpy(info->id, type_ids[id]);
 	info->num_dsps = 2;		// 0: Prepad Data, 1: FPGA Code
- 	if (((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT) 
+	if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
 		info->chip_ready = 1;
  	info->version = USX2Y_DRIVER_VERSION; 
 	return 0;
 }
 
 
-static int usX2Y_create_usbmidi(snd_card_t* card )
+static int usX2Y_create_usbmidi(struct snd_card *card)
 {
-	static snd_usb_midi_endpoint_info_t quirk_data_1 = {
-		.out_ep =0x06,
+	static struct snd_usb_midi_endpoint_info quirk_data_1 = {
+		.out_ep = 0x06,
 		.in_ep = 0x06,
 		.out_cables =	0x001,
 		.in_cables =	0x001
 	};
-	static snd_usb_audio_quirk_t quirk_1 = {
+	static struct snd_usb_audio_quirk quirk_1 = {
 		.vendor_name =	"TASCAM",
 		.product_name =	NAME_ALLCAPS,
 		.ifnum = 	0,
        		.type = QUIRK_MIDI_FIXED_ENDPOINT,
 		.data = &quirk_data_1
 	};
-	static snd_usb_midi_endpoint_info_t quirk_data_2 = {
-		.out_ep =0x06,
+	static struct snd_usb_midi_endpoint_info quirk_data_2 = {
+		.out_ep = 0x06,
 		.in_ep = 0x06,
 		.out_cables =	0x003,
 		.in_cables =	0x003
 	};
-	static snd_usb_audio_quirk_t quirk_2 = {
+	static struct snd_usb_audio_quirk quirk_2 = {
 		.vendor_name =	"TASCAM",
 		.product_name =	"US428",
 		.ifnum = 	0,
@@ -181,13 +183,15 @@ static int usX2Y_create_usbmidi(snd_card_t* card )
 	};
 	struct usb_device *dev = usX2Y(card)->chip.dev;
 	struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
-	snd_usb_audio_quirk_t *quirk = le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ? &quirk_2 : &quirk_1;
+	struct snd_usb_audio_quirk *quirk =
+		le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
+		&quirk_2 : &quirk_1;
 
 	snd_printdd("usX2Y_create_usbmidi \n");
 	return snd_usb_create_midi_interface(&usX2Y(card)->chip, iface, quirk);
 }
 
-static int usX2Y_create_alsa_devices(snd_card_t* card)
+static int usX2Y_create_alsa_devices(struct snd_card *card)
 {
 	int err;
 
@@ -207,9 +211,10 @@ static int usX2Y_create_alsa_devices(snd_card_t* card)
 	return err;
 } 
 
-static int snd_usX2Y_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
+static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
+				    struct snd_hwdep_dsp_image *dsp)
 {
-	usX2Ydev_t *priv = hw->private_data;
+	struct usX2Ydev *priv = hw->private_data;
 	int	lret, err = -EINVAL;
 	snd_printdd( "dsp_load %s\n", dsp->name);
 
@@ -256,10 +261,10 @@ static int snd_usX2Y_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
 }
 
 
-int usX2Y_hwdep_new(snd_card_t* card, struct usb_device* device)
+int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
 {
 	int err;
-	snd_hwdep_t *hw;
+	struct snd_hwdep *hw;
 
 	if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
 		return err;
diff --git a/sound/usb/usx2y/usX2Yhwdep.h b/sound/usb/usx2y/usX2Yhwdep.h
index d612a26..c095d5b 100644
--- a/sound/usb/usx2y/usX2Yhwdep.h
+++ b/sound/usb/usx2y/usX2Yhwdep.h
@@ -1,6 +1,6 @@
 #ifndef USX2YHWDEP_H
 #define USX2YHWDEP_H
 
-int usX2Y_hwdep_new(snd_card_t* card, struct usb_device* device);
+int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device);
 
 #endif
diff --git a/sound/usb/usx2y/usbus428ctldefs.h b/sound/usb/usx2y/usbus428ctldefs.h
index 6af1643..b864e7e 100644
--- a/sound/usb/usx2y/usbus428ctldefs.h
+++ b/sound/usb/usx2y/usbus428ctldefs.h
@@ -51,7 +51,7 @@ enum E_In84{
 #define T_NULL  0x80
 
 
-struct us428_ctls{
+struct us428_ctls {
 	unsigned char   Fader[9];
 	unsigned char 	Transport;
 	unsigned char 	Modifier;
@@ -63,46 +63,42 @@ struct us428_ctls{
 	unsigned char   Wheel[5];
 };
 
-typedef struct us428_ctls us428_ctls_t;
-
-typedef struct us428_setByte{
+struct us428_setByte {
 	unsigned char Offset,
 		Value;
-}us428_setByte_t;
+};
 
 enum {
 	eLT_Volume = 0,
 	eLT_Light
 };
 
-typedef struct usX2Y_volume {
+struct usX2Y_volume {
 	unsigned char Channel,
 		LH,
 		LL,
 		RH,
 		RL;
-} usX2Y_volume_t;
+};
 
-struct us428_lights{
-	us428_setByte_t Light[7];
+struct us428_lights {
+	struct us428_setByte Light[7];
 };
-typedef struct us428_lights us428_lights_t;
 
-typedef struct {
+struct us428_p4out {
 	char type;
 	union {
-		usX2Y_volume_t	vol;
-		us428_lights_t  lights;
+		struct usX2Y_volume vol;
+		struct us428_lights lights;
 	} val;
-} us428_p4out_t;
+};
 
 #define N_us428_ctl_BUFS 16
 #define N_us428_p4out_BUFS 16
 struct us428ctls_sharedmem{
-	us428_ctls_t	CtlSnapShot[N_us428_ctl_BUFS];
-	int		CtlSnapShotDiffersAt[N_us428_ctl_BUFS];
-	int		CtlSnapShotLast, CtlSnapShotRed;
-	us428_p4out_t	p4out[N_us428_p4out_BUFS];
-	int		p4outLast, p4outSent;
+	struct us428_ctls	CtlSnapShot[N_us428_ctl_BUFS];
+	int			CtlSnapShotDiffersAt[N_us428_ctl_BUFS];
+	int			CtlSnapShotLast, CtlSnapShotRed;
+	struct us428_p4out	p4out[N_us428_p4out_BUFS];
+	int			p4outLast, p4outSent;
 };
-typedef struct us428ctls_sharedmem us428ctls_sharedmem_t;
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
index a3967f7..e0abb56 100644
--- a/sound/usb/usx2y/usbusx2y.c
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -167,28 +167,28 @@ MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
 static int snd_usX2Y_card_used[SNDRV_CARDS];
 
 static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
-static void snd_usX2Y_card_private_free(snd_card_t *card);
+static void snd_usX2Y_card_private_free(struct snd_card *card);
 
 /* 
  * pipe 4 is used for switching the lamps, setting samplerate, volumes ....   
  */
-static void i_usX2Y_Out04Int(struct urb* urb, struct pt_regs *regs)
+static void i_usX2Y_Out04Int(struct urb *urb, struct pt_regs *regs)
 {
 #ifdef CONFIG_SND_DEBUG
 	if (urb->status) {
 		int 		i;
-		usX2Ydev_t*	usX2Y = urb->context;
+		struct usX2Ydev *usX2Y = urb->context;
 		for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
 		snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
 	}
 #endif
 }
 
-static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
+static void i_usX2Y_In04Int(struct urb *urb, struct pt_regs *regs)
 {
 	int			err = 0;
-	usX2Ydev_t		*usX2Y = urb->context;
-	us428ctls_sharedmem_t	*us428ctls = usX2Y->us428ctls_sharedmem;
+	struct usX2Ydev		*usX2Y = urb->context;
+	struct us428ctls_sharedmem	*us428ctls = usX2Y->us428ctls_sharedmem;
 
 	usX2Y->In04IntCalls++;
 
@@ -239,10 +239,10 @@ static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
 					send = 0;
 				for (j = 0; j < URBS_AsyncSeq  &&  !err; ++j)
 					if (0 == usX2Y->AS04.urb[j]->status) {
-						us428_p4out_t *p4out = us428ctls->p4out + send;	// FIXME if more then 1 p4out is new, 1 gets lost.
+						struct us428_p4out *p4out = us428ctls->p4out + send;	// FIXME if more then 1 p4out is new, 1 gets lost.
 						usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
 								  usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol, 
-								  p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
+								  p4out->type == eLT_Light ? sizeof(struct us428_lights) : 5,
 								  i_usX2Y_Out04Int, usX2Y);
 						err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
 						us428ctls->p4outSent = send;
@@ -261,7 +261,7 @@ static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
 /*
  * Prepare some urbs
  */
-int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
+int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
 {
 	int	err = 0,
 		i;
@@ -283,9 +283,8 @@ int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
 	return err;
 }
 
-int usX2Y_In04_init(usX2Ydev_t* usX2Y)
+int usX2Y_In04_init(struct usX2Ydev *usX2Y)
 {
-	int	err = 0;
 	if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
 		return -ENOMEM;
 
@@ -299,11 +298,10 @@ int usX2Y_In04_init(usX2Ydev_t* usX2Y)
 			 usX2Y->In04Buf, 21,
 			 i_usX2Y_In04Int, usX2Y,
 			 10);
-	err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
-	return err;
+	return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
 }
 
-static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
+static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S)
 {
 	int	i;
 	for (i = 0; i < URBS_AsyncSeq; ++i) {
@@ -336,16 +334,16 @@ static struct usb_device_id snd_usX2Y_usb_id_table[] = {
 	{ /* terminator */ }
 };
 
-static snd_card_t* usX2Y_create_card(struct usb_device* device)
+static struct snd_card *usX2Y_create_card(struct usb_device *device)
 {
 	int		dev;
-	snd_card_t*	card;
+	struct snd_card *	card;
 	for (dev = 0; dev < SNDRV_CARDS; ++dev)
 		if (enable[dev] && !snd_usX2Y_card_used[dev])
 			break;
 	if (dev >= SNDRV_CARDS)
 		return NULL;
-	card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
+	card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct usX2Ydev));
 	if (!card)
 		return NULL;
 	snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
@@ -369,10 +367,10 @@ static snd_card_t* usX2Y_create_card(struct usb_device* device)
 }
 
 
-static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
+static void *usX2Y_usb_probe(struct usb_device *device, struct usb_interface *intf, const struct usb_device_id *device_id)
 {
 	int		err;
-	snd_card_t*	card;
+	struct snd_card *	card;
 	if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
 	    (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
 	     le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
@@ -415,7 +413,7 @@ static struct usb_driver snd_usX2Y_usb_driver = {
 	.id_table =	snd_usX2Y_usb_id_table,
 };
 
-static void snd_usX2Y_card_private_free(snd_card_t *card)
+static void snd_usX2Y_card_private_free(struct snd_card *card)
 {
 	kfree(usX2Y(card)->In04Buf);
 	usb_free_urb(usX2Y(card)->In04urb);
@@ -428,23 +426,24 @@ static void snd_usX2Y_card_private_free(snd_card_t *card)
 /*
  * Frees the device.
  */
-static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
+static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr)
 {
 	if (ptr) {
-		usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
-		struct list_head* p;
+		struct snd_card *card = ptr;
+		struct usX2Ydev *usX2Y = usX2Y(card);
+		struct list_head *p;
 		usX2Y->chip.shutdown = 1;
 		usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
 		usX2Y_unlinkSeq(&usX2Y->AS04);
 		usb_kill_urb(usX2Y->In04urb);
-		snd_card_disconnect((snd_card_t*)ptr);
+		snd_card_disconnect(card);
 		/* release the midi resources */
 		list_for_each(p, &usX2Y->chip.midi_list) {
 			snd_usbmidi_disconnect(p);
 		}
 		if (usX2Y->us428ctls_sharedmem) 
 			wake_up(&usX2Y->us428ctls_wait_queue_head);
-		snd_card_free((snd_card_t*)ptr);
+		snd_card_free(card);
 	}
 }
 
diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h
index f65f3a7..435c1fe 100644
--- a/sound/usb/usx2y/usbusx2y.h
+++ b/sound/usb/usx2y/usbusx2y.h
@@ -8,47 +8,46 @@
 
 #define URBS_AsyncSeq 10
 #define URB_DataLen_AsyncSeq 32
-typedef struct {
-	struct urb*	urb[URBS_AsyncSeq];
-	char*   buffer;
-} snd_usX2Y_AsyncSeq_t;
+struct snd_usX2Y_AsyncSeq {
+	struct urb	*urb[URBS_AsyncSeq];
+	char		*buffer;
+};
 
-typedef struct {
+struct snd_usX2Y_urbSeq {
 	int	submitted;
 	int	len;
-	struct urb*	urb[0];
-} snd_usX2Y_urbSeq_t;
+	struct urb	*urb[0];
+};
 
-typedef struct snd_usX2Y_substream snd_usX2Y_substream_t;
 #include "usx2yhwdeppcm.h"
 
-typedef struct {
-	snd_usb_audio_t 	chip;
+struct usX2Ydev {
+	struct snd_usb_audio 	chip;
 	int			stride;
 	struct urb		*In04urb;
 	void			*In04Buf;
 	char			In04Last[24];
 	unsigned		In04IntCalls;
-	snd_usX2Y_urbSeq_t	*US04;
+	struct snd_usX2Y_urbSeq	*US04;
 	wait_queue_head_t	In04WaitQueue;
-	snd_usX2Y_AsyncSeq_t	AS04;
+	struct snd_usX2Y_AsyncSeq	AS04;
 	unsigned int		rate,
 				format;
 	int			chip_status;
 	struct semaphore	prepare_mutex;
-	us428ctls_sharedmem_t	*us428ctls_sharedmem;
+	struct us428ctls_sharedmem	*us428ctls_sharedmem;
 	int			wait_iso_frame;
 	wait_queue_head_t	us428ctls_wait_queue_head;
-	snd_usX2Y_hwdep_pcm_shm_t	*hwdep_pcm_shm;
-	snd_usX2Y_substream_t	*subs[4];
-	snd_usX2Y_substream_t	* volatile  prepare_subs;
+	struct snd_usX2Y_hwdep_pcm_shm	*hwdep_pcm_shm;
+	struct snd_usX2Y_substream	*subs[4];
+	struct snd_usX2Y_substream	* volatile  prepare_subs;
 	wait_queue_head_t	prepare_wait_queue;
-} usX2Ydev_t;
+};
 
 
 struct snd_usX2Y_substream {
-	usX2Ydev_t	*usX2Y;
-	snd_pcm_substream_t *pcm_substream;
+	struct usX2Ydev	*usX2Y;
+	struct snd_pcm_substream *pcm_substream;
 
 	int			endpoint;		
 	unsigned int		maxpacksize;		/* max packet size in bytes */
@@ -72,12 +71,12 @@ struct snd_usX2Y_substream {
 };
 
 
-#define usX2Y(c) ((usX2Ydev_t*)(c)->private_data)
+#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
 
-int usX2Y_audio_create(snd_card_t* card);
+int usX2Y_audio_create(struct snd_card *card);
 
-int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y);
-int usX2Y_In04_init(usX2Ydev_t* usX2Y);
+int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
+int usX2Y_In04_init(struct usX2Ydev *usX2Y);
 
 #define NAME_ALLCAPS "US-X2Y"
 
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index affda97..a6bbc7a 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -67,18 +67,20 @@
 #endif
 
 
-static int usX2Y_urb_capt_retire(snd_usX2Y_substream_t *subs)
+static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs)
 {
 	struct urb	*urb = subs->completed_urb;
-	snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
 	unsigned char	*cp;
 	int 		i, len, lens = 0, hwptr_done = subs->hwptr_done;
-	usX2Ydev_t	*usX2Y = subs->usX2Y;
+	struct usX2Ydev	*usX2Y = subs->usX2Y;
 
 	for (i = 0; i < nr_of_packs(); i++) {
 		cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 		if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */
-			snd_printk(KERN_ERR "activ frame status %i. Most propably some hardware problem.\n", urb->iso_frame_desc[i].status);
+			snd_printk(KERN_ERR "active frame status %i. "
+				   "Most propably some hardware problem.\n",
+				   urb->iso_frame_desc[i].status);
 			return urb->iso_frame_desc[i].status;
 		}
 		len = urb->iso_frame_desc[i].actual_length / usX2Y->stride;
@@ -94,7 +96,8 @@ static int usX2Y_urb_capt_retire(snd_usX2Y_substream_t *subs)
 			memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, blen);
 			memcpy(runtime->dma_area, cp + blen, len * usX2Y->stride - blen);
 		} else {
-			memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, len * usX2Y->stride);
+			memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp,
+			       len * usX2Y->stride);
 		}
 		lens += len;
 		if ((hwptr_done += len) >= runtime->buffer_size)
@@ -120,13 +123,13 @@ static int usX2Y_urb_capt_retire(snd_usX2Y_substream_t *subs)
  * it directly from the buffer.  thus the data is once copied to
  * a temporary buffer and urb points to that.
  */
-static int usX2Y_urb_play_prepare(snd_usX2Y_substream_t *subs,
+static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs,
 				  struct urb *cap_urb,
 				  struct urb *urb)
 {
 	int count, counts, pack;
-	usX2Ydev_t* usX2Y = subs->usX2Y;
-	snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
 
 	count = 0;
 	for (pack = 0; pack <  nr_of_packs(); pack++) {
@@ -139,7 +142,8 @@ static int usX2Y_urb_play_prepare(snd_usX2Y_substream_t *subs,
 		}
 		/* set up descriptor */
 		urb->iso_frame_desc[pack].offset = pack ?
-			urb->iso_frame_desc[pack - 1].offset + urb->iso_frame_desc[pack - 1].length :
+			urb->iso_frame_desc[pack - 1].offset +
+			urb->iso_frame_desc[pack - 1].length :
 			0;
 		urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length;
 	}
@@ -151,8 +155,10 @@ static int usX2Y_urb_play_prepare(snd_usX2Y_substream_t *subs,
 			int len;
 			len = runtime->buffer_size - subs->hwptr;
 			urb->transfer_buffer = subs->tmpbuf;
-			memcpy(subs->tmpbuf, runtime->dma_area + subs->hwptr * usX2Y->stride, len * usX2Y->stride);
-			memcpy(subs->tmpbuf + len * usX2Y->stride, runtime->dma_area, (count - len) * usX2Y->stride);
+			memcpy(subs->tmpbuf, runtime->dma_area +
+			       subs->hwptr * usX2Y->stride, len * usX2Y->stride);
+			memcpy(subs->tmpbuf + len * usX2Y->stride,
+			       runtime->dma_area, (count - len) * usX2Y->stride);
 			subs->hwptr += count;
 			subs->hwptr -= runtime->buffer_size;
 		} else {
@@ -172,9 +178,9 @@ static int usX2Y_urb_play_prepare(snd_usX2Y_substream_t *subs,
  *
  * update the current position and call callback if a period is processed.
  */
-static void usX2Y_urb_play_retire(snd_usX2Y_substream_t *subs, struct urb *urb)
+static void usX2Y_urb_play_retire(struct snd_usX2Y_substream *subs, struct urb *urb)
 {
-	snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
 	int		len = urb->actual_length / subs->usX2Y->stride;
 
 	subs->transfer_done += len;
@@ -187,7 +193,7 @@ static void usX2Y_urb_play_retire(snd_usX2Y_substream_t *subs, struct urb *urb)
 	}
 }
 
-static int usX2Y_urb_submit(snd_usX2Y_substream_t *subs, struct urb *urb, int frame)
+static int usX2Y_urb_submit(struct snd_usX2Y_substream *subs, struct urb *urb, int frame)
 {
 	int err;
 	if (!urb)
@@ -202,50 +208,47 @@ static int usX2Y_urb_submit(snd_usX2Y_substream_t *subs, struct urb *urb, int fr
 	return 0;
 }
 
-static inline int usX2Y_usbframe_complete(snd_usX2Y_substream_t *capsubs, snd_usX2Y_substream_t *playbacksubs, int frame)
+static inline int usX2Y_usbframe_complete(struct snd_usX2Y_substream *capsubs,
+					  struct snd_usX2Y_substream *playbacksubs,
+					  int frame)
 {
 	int err, state;
-	{
-		struct urb *urb = playbacksubs->completed_urb;
-
-		state = atomic_read(&playbacksubs->state);
-		if (NULL != urb) {
-			if (state == state_RUNNING)
-				usX2Y_urb_play_retire(playbacksubs, urb);
-			else
-				if (state >= state_PRERUNNING) {
-					atomic_inc(&playbacksubs->state);
-				}
-		} else {
-			switch (state) {
-			case state_STARTING1:
-				urb = playbacksubs->urb[0];
-				atomic_inc(&playbacksubs->state);
-				break;
-			case state_STARTING2:
-				urb = playbacksubs->urb[1];
-				atomic_inc(&playbacksubs->state);
-				break;
-			}
+	struct urb *urb = playbacksubs->completed_urb;
+
+	state = atomic_read(&playbacksubs->state);
+	if (NULL != urb) {
+		if (state == state_RUNNING)
+			usX2Y_urb_play_retire(playbacksubs, urb);
+		else if (state >= state_PRERUNNING)
+			atomic_inc(&playbacksubs->state);
+	} else {
+		switch (state) {
+		case state_STARTING1:
+			urb = playbacksubs->urb[0];
+			atomic_inc(&playbacksubs->state);
+			break;
+		case state_STARTING2:
+			urb = playbacksubs->urb[1];
+			atomic_inc(&playbacksubs->state);
+			break;
 		}
-		if (urb) {
-			if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) ||
-			    (err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
-				return err;
-			}
+	}
+	if (urb) {
+		if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) ||
+		    (err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
+			return err;
 		}
-
-		playbacksubs->completed_urb = NULL;
 	}
+
+	playbacksubs->completed_urb = NULL;
+
 	state = atomic_read(&capsubs->state);
 	if (state >= state_PREPARED) {
 		if (state == state_RUNNING) {
 			if ((err = usX2Y_urb_capt_retire(capsubs)))
 				return err;
-		} else
-			if (state >= state_PRERUNNING) {
-				atomic_inc(&capsubs->state);
-			}
+		} else if (state >= state_PRERUNNING)
+			atomic_inc(&capsubs->state);
 		if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame)))
 			return err;
 	}
@@ -254,18 +257,19 @@ static inline int usX2Y_usbframe_complete(snd_usX2Y_substream_t *capsubs, snd_us
 }
 
 
-static void usX2Y_clients_stop(usX2Ydev_t *usX2Y)
+static void usX2Y_clients_stop(struct usX2Ydev *usX2Y)
 {
 	int s, u;
+
 	for (s = 0; s < 4; s++) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
 		if (subs) {
 			snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state));
 			atomic_set(&subs->state, state_STOPPED);
 		}
 	}
 	for (s = 0; s < 4; s++) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
 		if (subs) {
 			if (atomic_read(&subs->state) >= state_PRERUNNING) {
 				snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);
@@ -273,7 +277,8 @@ static void usX2Y_clients_stop(usX2Ydev_t *usX2Y)
 			for (u = 0; u < NRURBS; u++) {
 				struct urb *urb = subs->urb[u];
 				if (NULL != urb)
-					snd_printdd("%i status=%i start_frame=%i\n", u, urb->status, urb->start_frame);
+					snd_printdd("%i status=%i start_frame=%i\n",
+						    u, urb->status, urb->start_frame);
 			}
 		}
 	}
@@ -281,30 +286,36 @@ static void usX2Y_clients_stop(usX2Ydev_t *usX2Y)
 	wake_up(&usX2Y->prepare_wait_queue);
 }
 
-static void usX2Y_error_urb_status(usX2Ydev_t *usX2Y, snd_usX2Y_substream_t *subs, struct urb *urb)
+static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y,
+				   struct snd_usX2Y_substream *subs, struct urb *urb)
 {
 	snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status);
 	urb->status = 0;
 	usX2Y_clients_stop(usX2Y);
 }
 
-static void usX2Y_error_sequence(usX2Ydev_t *usX2Y, snd_usX2Y_substream_t *subs, struct urb *urb)
+static void usX2Y_error_sequence(struct usX2Ydev *usX2Y,
+				 struct snd_usX2Y_substream *subs, struct urb *urb)
 {
 	snd_printk(KERN_ERR "Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n"
 		   KERN_ERR "Most propably some urb of usb-frame %i is still missing.\n"
 		   KERN_ERR "Cause could be too long delays in usb-hcd interrupt handling.\n",
 		   usb_get_current_frame_number(usX2Y->chip.dev),
-		   subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame);
+		   subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
+		   usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame);
 	usX2Y_clients_stop(usX2Y);
 }
 
 static void i_usX2Y_urb_complete(struct urb *urb, struct pt_regs *regs)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *subs = urb->context;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
 
 	if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
-		snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", usb_get_current_frame_number(usX2Y->chip.dev), subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", urb->status, urb->start_frame);
+		snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n",
+			    usb_get_current_frame_number(usX2Y->chip.dev),
+			    subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
+			    urb->status, urb->start_frame);
 		return;
 	}
 	if (unlikely(urb->status)) {
@@ -318,10 +329,12 @@ static void i_usX2Y_urb_complete(struct urb *urb, struct pt_regs *regs)
 		return;
 	}
 	{
-		snd_usX2Y_substream_t *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE],
+		struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE],
 			*playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
-		if (capsubs->completed_urb && atomic_read(&capsubs->state) >= state_PREPARED &&
-		    (playbacksubs->completed_urb || atomic_read(&playbacksubs->state) < state_PREPARED)) {
+		if (capsubs->completed_urb &&
+		    atomic_read(&capsubs->state) >= state_PREPARED &&
+		    (playbacksubs->completed_urb ||
+		     atomic_read(&playbacksubs->state) < state_PREPARED)) {
 			if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) {
 				if (nr_of_packs() <= urb->start_frame &&
 				    urb->start_frame <= (2 * nr_of_packs() - 1))	// uhci and ohci
@@ -336,11 +349,12 @@ static void i_usX2Y_urb_complete(struct urb *urb, struct pt_regs *regs)
 	}
 }
 
-static void usX2Y_urbs_set_complete(usX2Ydev_t * usX2Y, void (*complete)(struct urb *, struct pt_regs *))
+static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y,
+				    void (*complete)(struct urb *, struct pt_regs *))
 {
 	int s, u;
 	for (s = 0; s < 4; s++) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
 		if (NULL != subs)
 			for (u = 0; u < NRURBS; u++) {
 				struct urb * urb = subs->urb[u];
@@ -350,7 +364,7 @@ static void usX2Y_urbs_set_complete(usX2Ydev_t * usX2Y, void (*complete)(struct
 	}
 }
 
-static void usX2Y_subs_startup_finish(usX2Ydev_t * usX2Y)
+static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y)
 {
 	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete);
 	usX2Y->prepare_subs = NULL;
@@ -358,9 +372,9 @@ static void usX2Y_subs_startup_finish(usX2Ydev_t * usX2Y)
 
 static void i_usX2Y_subs_startup(struct urb *urb, struct pt_regs *regs)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
-	snd_usX2Y_substream_t *prepare_subs = usX2Y->prepare_subs;
+	struct snd_usX2Y_substream *subs = urb->context;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs;
 	if (NULL != prepare_subs)
 		if (urb->start_frame == prepare_subs->urb[0]->start_frame) {
 			usX2Y_subs_startup_finish(usX2Y);
@@ -371,9 +385,10 @@ static void i_usX2Y_subs_startup(struct urb *urb, struct pt_regs *regs)
 	i_usX2Y_urb_complete(urb, regs);
 }
 
-static void usX2Y_subs_prepare(snd_usX2Y_substream_t *subs)
+static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs)
 {
-	snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", subs, subs->endpoint, subs->urb[0], subs->urb[1]);
+	snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n",
+		    subs, subs->endpoint, subs->urb[0], subs->urb[1]);
 	/* reset the pointer */
 	subs->hwptr = 0;
 	subs->hwptr_done = 0;
@@ -381,7 +396,7 @@ static void usX2Y_subs_prepare(snd_usX2Y_substream_t *subs)
 }
 
 
-static void usX2Y_urb_release(struct urb** urb, int free_tb)
+static void usX2Y_urb_release(struct urb **urb, int free_tb)
 {
 	if (*urb) {
 		usb_kill_urb(*urb);
@@ -394,12 +409,13 @@ static void usX2Y_urb_release(struct urb** urb, int free_tb)
 /*
  * release a substreams urbs
  */
-static void usX2Y_urbs_release(snd_usX2Y_substream_t *subs)
+static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs)
 {
 	int i;
 	snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint);
 	for (i = 0; i < NRURBS; i++)
-		usX2Y_urb_release(subs->urb + i, subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
+		usX2Y_urb_release(subs->urb + i,
+				  subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
 
 	kfree(subs->tmpbuf);
 	subs->tmpbuf = NULL;
@@ -407,7 +423,7 @@ static void usX2Y_urbs_release(snd_usX2Y_substream_t *subs)
 /*
  * initialize a substream's urbs
  */
-static int usX2Y_urbs_allocate(snd_usX2Y_substream_t *subs)
+static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs)
 {
 	int i;
 	unsigned int pipe;
@@ -429,7 +445,7 @@ static int usX2Y_urbs_allocate(snd_usX2Y_substream_t *subs)
 	}
 	/* allocate and initialize data urbs */
 	for (i = 0; i < NRURBS; i++) {
-		struct urb** purb = subs->urb + i;
+		struct urb **purb = subs->urb + i;
 		if (*purb) {
 			usb_kill_urb(*purb);
 			continue;
@@ -457,70 +473,68 @@ static int usX2Y_urbs_allocate(snd_usX2Y_substream_t *subs)
 	return 0;
 }
 
-static void usX2Y_subs_startup(snd_usX2Y_substream_t *subs)
+static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs)
 {
-	usX2Ydev_t *usX2Y = subs->usX2Y;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
 	usX2Y->prepare_subs = subs;
 	subs->urb[0]->start_frame = -1;
 	wmb();
 	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup);
 }
 
-static int usX2Y_urbs_start(snd_usX2Y_substream_t *subs)
+static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs)
 {
 	int i, err;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
 
 	if ((err = usX2Y_urbs_allocate(subs)) < 0)
 		return err;
 	subs->completed_urb = NULL;
 	for (i = 0; i < 4; i++) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[i];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[i];
 		if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
 			goto start;
 	}
 	usX2Y->wait_iso_frame = -1;
+
  start:
-	{
-		usX2Y_subs_startup(subs);
-		for (i = 0; i < NRURBS; i++) {
-			struct urb *urb = subs->urb[i];
-			if (usb_pipein(urb->pipe)) {
-				unsigned long pack;
-				if (0 == i)
-					atomic_set(&subs->state, state_STARTING3);
-				urb->dev = usX2Y->chip.dev;
-				urb->transfer_flags = URB_ISO_ASAP;
-				for (pack = 0; pack < nr_of_packs(); pack++) {
-					urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack;
-					urb->iso_frame_desc[pack].length = subs->maxpacksize;
-				}
-				urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); 
-				if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
-					snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err);
-					err = -EPIPE;
-					goto cleanup;
-				} else {
-					if (0 > usX2Y->wait_iso_frame)
-						usX2Y->wait_iso_frame = urb->start_frame;
-				}
-				urb->transfer_flags = 0;
+	usX2Y_subs_startup(subs);
+	for (i = 0; i < NRURBS; i++) {
+		struct urb *urb = subs->urb[i];
+		if (usb_pipein(urb->pipe)) {
+			unsigned long pack;
+			if (0 == i)
+				atomic_set(&subs->state, state_STARTING3);
+			urb->dev = usX2Y->chip.dev;
+			urb->transfer_flags = URB_ISO_ASAP;
+			for (pack = 0; pack < nr_of_packs(); pack++) {
+				urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack;
+				urb->iso_frame_desc[pack].length = subs->maxpacksize;
+			}
+			urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); 
+			if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
+				snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err);
+				err = -EPIPE;
+				goto cleanup;
 			} else {
-				atomic_set(&subs->state, state_STARTING1);
-				break;
+				if (0 > usX2Y->wait_iso_frame)
+					usX2Y->wait_iso_frame = urb->start_frame;
 			}
+			urb->transfer_flags = 0;
+		} else {
+			atomic_set(&subs->state, state_STARTING1);
+			break;
 		}
-		err = 0;
-		wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
-		if (atomic_read(&subs->state) != state_PREPARED) {
-			err = -EPIPE;
-		}
-
-	cleanup:
-		if (err) {
-			usX2Y_subs_startup_finish(usX2Y);
-			usX2Y_clients_stop(usX2Y);		// something is completely wroong > stop evrything
-		}
+	}
+	err = 0;
+	wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
+	if (atomic_read(&subs->state) != state_PREPARED)
+		err = -EPIPE;
+
+ cleanup:
+	if (err) {
+		usX2Y_subs_startup_finish(usX2Y);
+		usX2Y_clients_stop(usX2Y);		// something is completely wroong > stop evrything
 	}
 	return err;
 }
@@ -528,17 +542,17 @@ static int usX2Y_urbs_start(snd_usX2Y_substream_t *subs)
 /*
  * return the current pcm pointer.  just return the hwptr_done value.
  */
-static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)substream->runtime->private_data;
+	struct snd_usX2Y_substream *subs = substream->runtime->private_data;
 	return subs->hwptr_done;
 }
 /*
  * start/stop substream
  */
-static int snd_usX2Y_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)substream->runtime->private_data;
+	struct snd_usX2Y_substream *subs = substream->runtime->private_data;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -649,9 +663,9 @@ static struct s_c2 SetRate48000[] =
 };
 #define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000)
 
-static void i_usX2Y_04Int(struct urb* urb, struct pt_regs *regs)
+static void i_usX2Y_04Int(struct urb *urb, struct pt_regs *regs)
 {
-	usX2Ydev_t*	usX2Y = urb->context;
+	struct usX2Ydev *usX2Y = urb->context;
 	
 	if (urb->status)
 		snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status);
@@ -659,21 +673,20 @@ static void i_usX2Y_04Int(struct urb* urb, struct pt_regs *regs)
 		wake_up(&usX2Y->In04WaitQueue);
 }
 
-static int usX2Y_rate_set(usX2Ydev_t *usX2Y, int rate)
+static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate)
 {
 	int			err = 0, i;
-	snd_usX2Y_urbSeq_t	*us = NULL;
+	struct snd_usX2Y_urbSeq	*us = NULL;
 	int			*usbdata = NULL;
 	struct s_c2		*ra = rate == 48000 ? SetRate48000 : SetRate44100;
 
 	if (usX2Y->rate != rate) {
-		us = kmalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL);
+		us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL);
 		if (NULL == us) {
 			err = -ENOMEM;
 			goto cleanup;
 		}
-		memset(us, 0, sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS); 
-		usbdata = kmalloc(sizeof(int)*NOOF_SETRATE_URBS, GFP_KERNEL);
+		usbdata = kmalloc(sizeof(int) * NOOF_SETRATE_URBS, GFP_KERNEL);
 		if (NULL == usbdata) {
 			err = -ENOMEM;
 			goto cleanup;
@@ -713,9 +726,8 @@ static int usX2Y_rate_set(usX2Ydev_t *usX2Y, int rate)
 			usX2Y->US04 = NULL;
 			kfree(usbdata);
 			kfree(us);
-			if (!err) {
+			if (!err)
 				usX2Y->rate = rate;
-			}
 		}
 	}
 
@@ -723,7 +735,7 @@ static int usX2Y_rate_set(usX2Ydev_t *usX2Y, int rate)
 }
 
 
-static int usX2Y_format_set(usX2Ydev_t *usX2Y, snd_pcm_format_t format)
+static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format)
 {
 	int alternate, err;
 	struct list_head* p;
@@ -753,40 +765,40 @@ static int usX2Y_format_set(usX2Ydev_t *usX2Y, snd_pcm_format_t format)
 }
 
 
-static int snd_usX2Y_pcm_hw_params(snd_pcm_substream_t *substream,
-				   snd_pcm_hw_params_t *hw_params)
+static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *hw_params)
 {
 	int			err = 0;
 	unsigned int		rate = params_rate(hw_params);
 	snd_pcm_format_t	format = params_format(hw_params);
-	snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params);
+	struct snd_card *card = substream->pstr->pcm->card;
+	struct list_head *list;
 
-	{	// all pcm substreams off one usX2Y have to operate at the same rate & format
-		snd_card_t *card = substream->pstr->pcm->card;
-		struct list_head *list;
-		list_for_each(list, &card->devices) {
-			snd_device_t *dev;
-			snd_pcm_t *pcm;
-			int s;
-			dev = snd_device(list);
-			if (dev->type != SNDRV_DEV_PCM)
-				continue;
-			pcm = dev->device_data;
-			for (s = 0; s < 2; ++s) {
-				snd_pcm_substream_t *test_substream;
-				test_substream = pcm->streams[s].substream;
-				if (test_substream && test_substream != substream  &&
-				    test_substream->runtime &&
-				    ((test_substream->runtime->format &&
-				      test_substream->runtime->format != format) ||
-				     (test_substream->runtime->rate &&
-				      test_substream->runtime->rate != rate)))
-					return -EINVAL;
-			}
+	snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params);
+	// all pcm substreams off one usX2Y have to operate at the same rate & format
+	list_for_each(list, &card->devices) {
+		struct snd_device *dev;
+		struct snd_pcm *pcm;
+		int s;
+		dev = snd_device(list);
+		if (dev->type != SNDRV_DEV_PCM)
+			continue;
+		pcm = dev->device_data;
+		for (s = 0; s < 2; ++s) {
+			struct snd_pcm_substream *test_substream;
+			test_substream = pcm->streams[s].substream;
+			if (test_substream && test_substream != substream  &&
+			    test_substream->runtime &&
+			    ((test_substream->runtime->format &&
+			      test_substream->runtime->format != format) ||
+			     (test_substream->runtime->rate &&
+			      test_substream->runtime->rate != rate)))
+				return -EINVAL;
 		}
 	}
 	if (0 > (err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)))) {
-		snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", substream, params_buffer_bytes(hw_params), err);
+		snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n",
+			   substream, params_buffer_bytes(hw_params), err);
 		return err;
 	}
 	return 0;
@@ -795,15 +807,15 @@ static int snd_usX2Y_pcm_hw_params(snd_pcm_substream_t *substream,
 /*
  * free the buffer
  */
-static int snd_usX2Y_pcm_hw_free(snd_pcm_substream_t *substream)
+static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data;
 	down(&subs->usX2Y->prepare_mutex);
 	snd_printdd("snd_usX2Y_hw_free(%p)\n", substream);
 
 	if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
-		snd_usX2Y_substream_t *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+		struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
 		atomic_set(&subs->state, state_STOPPED);
 		usX2Y_urbs_release(subs);
 		if (!cap_subs->pcm_substream ||
@@ -814,7 +826,7 @@ static int snd_usX2Y_pcm_hw_free(snd_pcm_substream_t *substream)
 			usX2Y_urbs_release(cap_subs);
 		}
 	} else {
-		snd_usX2Y_substream_t *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+		struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
 		if (atomic_read(&playback_subs->state) < state_PREPARED) {
 			atomic_set(&subs->state, state_STOPPED);
 			usX2Y_urbs_release(subs);
@@ -828,12 +840,12 @@ static int snd_usX2Y_pcm_hw_free(snd_pcm_substream_t *substream)
  *
  * set format and initialize urbs
  */
-static int snd_usX2Y_pcm_prepare(snd_pcm_substream_t *substream)
+static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
-	snd_usX2Y_substream_t *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
 	int err = 0;
 	snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
 
@@ -861,7 +873,7 @@ static int snd_usX2Y_pcm_prepare(snd_pcm_substream_t *substream)
 	return err;
 }
 
-static snd_pcm_hardware_t snd_usX2Y_2c =
+static struct snd_pcm_hardware snd_usX2Y_2c =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -882,11 +894,11 @@ static snd_pcm_hardware_t snd_usX2Y_2c =
 
 
 
-static int snd_usX2Y_pcm_open(snd_pcm_substream_t *substream)
+static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream)
 {
-	snd_usX2Y_substream_t	*subs = ((snd_usX2Y_substream_t **)
+	struct snd_usX2Y_substream	*subs = ((struct snd_usX2Y_substream **)
 					 snd_pcm_substream_chip(substream))[substream->stream];
-	snd_pcm_runtime_t	*runtime = substream->runtime;
+	struct snd_pcm_runtime	*runtime = substream->runtime;
 
 	if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)
 		return -EBUSY;
@@ -900,19 +912,18 @@ static int snd_usX2Y_pcm_open(snd_pcm_substream_t *substream)
 
 
 
-static int snd_usX2Y_pcm_close(snd_pcm_substream_t *substream)
+static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
-	int err = 0;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data;
 
 	subs->pcm_substream = NULL;
 
-	return err;
+	return 0;
 }
 
 
-static snd_pcm_ops_t snd_usX2Y_pcm_ops = 
+static struct snd_pcm_ops snd_usX2Y_pcm_ops = 
 {
 	.open =		snd_usX2Y_pcm_open,
 	.close =	snd_usX2Y_pcm_close,
@@ -928,7 +939,7 @@ static snd_pcm_ops_t snd_usX2Y_pcm_ops =
 /*
  * free a usb stream instance
  */
-static void usX2Y_audio_stream_free(snd_usX2Y_substream_t **usX2Y_substream)
+static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream)
 {
 	if (NULL != usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]) {
 		kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]);
@@ -938,25 +949,23 @@ static void usX2Y_audio_stream_free(snd_usX2Y_substream_t **usX2Y_substream)
 	usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL;
 }
 
-static void snd_usX2Y_pcm_private_free(snd_pcm_t *pcm)
+static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm)
 {
-	snd_usX2Y_substream_t **usX2Y_stream = pcm->private_data;
-	if (usX2Y_stream) {
-		snd_pcm_lib_preallocate_free_for_all(pcm);
+	struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data;
+	if (usX2Y_stream)
 		usX2Y_audio_stream_free(usX2Y_stream);
-	}
 }
 
-static int usX2Y_audio_stream_new(snd_card_t *card, int playback_endpoint, int capture_endpoint)
+static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint)
 {
-	snd_pcm_t *pcm;
+	struct snd_pcm *pcm;
 	int err, i;
-	snd_usX2Y_substream_t **usX2Y_substream =
+	struct snd_usX2Y_substream **usX2Y_substream =
 		usX2Y(card)->subs + 2 * usX2Y(card)->chip.pcm_devs;
 
 	for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE;
 	     i <= SNDRV_PCM_STREAM_CAPTURE; ++i) {
-		usX2Y_substream[i] = kzalloc(sizeof(snd_usX2Y_substream_t), GFP_KERNEL);
+		usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL);
 		if (NULL == usX2Y_substream[i]) {
 			snd_printk(KERN_ERR "cannot malloc\n");
 			return -ENOMEM;
@@ -1006,7 +1015,7 @@ static int usX2Y_audio_stream_new(snd_card_t *card, int playback_endpoint, int c
 /*
  * create a chip instance and set its names.
  */
-int usX2Y_audio_create(snd_card_t* card)
+int usX2Y_audio_create(struct snd_card *card)
 {
 	int err = 0;
 	
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index c9136a9..796a7dc 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -58,12 +58,12 @@
 #include <sound/hwdep.h>
 
 
-static int usX2Y_usbpcm_urb_capt_retire(snd_usX2Y_substream_t *subs)
+static int usX2Y_usbpcm_urb_capt_retire(struct snd_usX2Y_substream *subs)
 {
 	struct urb	*urb = subs->completed_urb;
-	snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
 	int 		i, lens = 0, hwptr_done = subs->hwptr_done;
-	usX2Ydev_t	*usX2Y = subs->usX2Y;
+	struct usX2Ydev	*usX2Y = subs->usX2Y;
 	if (0 > usX2Y->hwdep_pcm_shm->capture_iso_start) { //FIXME
 		int head = usX2Y->hwdep_pcm_shm->captured_iso_head + 1;
 		if (head >= ARRAY_SIZE(usX2Y->hwdep_pcm_shm->captured_iso))
@@ -90,7 +90,8 @@ static int usX2Y_usbpcm_urb_capt_retire(snd_usX2Y_substream_t *subs)
 	return 0;
 }
 
-static inline int usX2Y_iso_frames_per_buffer(snd_pcm_runtime_t *runtime, usX2Ydev_t * usX2Y)
+static inline int usX2Y_iso_frames_per_buffer(struct snd_pcm_runtime *runtime,
+					      struct usX2Ydev * usX2Y)
 {
 	return (runtime->buffer_size * 1000) / usX2Y->rate + 1;	//FIXME: so far only correct period_size == 2^x ?
 }
@@ -105,13 +106,13 @@ static inline int usX2Y_iso_frames_per_buffer(snd_pcm_runtime_t *runtime, usX2Yd
  * it directly from the buffer.  thus the data is once copied to
  * a temporary buffer and urb points to that.
  */
-static int usX2Y_hwdep_urb_play_prepare(snd_usX2Y_substream_t *subs,
-				  struct urb *urb)
+static int usX2Y_hwdep_urb_play_prepare(struct snd_usX2Y_substream *subs,
+					struct urb *urb)
 {
 	int count, counts, pack;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
 	struct snd_usX2Y_hwdep_pcm_shm *shm = usX2Y->hwdep_pcm_shm;
-	snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
 
 	if (0 > shm->playback_iso_start) {
 		shm->playback_iso_start = shm->captured_iso_head -
@@ -144,13 +145,14 @@ static int usX2Y_hwdep_urb_play_prepare(snd_usX2Y_substream_t *subs,
 }
 
 
-static inline void usX2Y_usbpcm_urb_capt_iso_advance(snd_usX2Y_substream_t *subs, struct urb *urb)
+static inline void usX2Y_usbpcm_urb_capt_iso_advance(struct snd_usX2Y_substream *subs,
+						     struct urb *urb)
 {
 	int pack;
 	for (pack = 0; pack < nr_of_packs(); ++pack) {
 		struct usb_iso_packet_descriptor *desc = urb->iso_frame_desc + pack;
 		if (NULL != subs) {
-			snd_usX2Y_hwdep_pcm_shm_t *shm = subs->usX2Y->hwdep_pcm_shm;
+			struct snd_usX2Y_hwdep_pcm_shm *shm = subs->usX2Y->hwdep_pcm_shm;
 			int head = shm->captured_iso_head + 1;
 			if (head >= ARRAY_SIZE(shm->captured_iso))
 				head = 0;
@@ -166,9 +168,10 @@ static inline void usX2Y_usbpcm_urb_capt_iso_advance(snd_usX2Y_substream_t *subs
 	}
 }
 
-static inline int usX2Y_usbpcm_usbframe_complete(snd_usX2Y_substream_t *capsubs,
-					   snd_usX2Y_substream_t *capsubs2,
-					   snd_usX2Y_substream_t *playbacksubs, int frame)
+static inline int usX2Y_usbpcm_usbframe_complete(struct snd_usX2Y_substream *capsubs,
+						 struct snd_usX2Y_substream *capsubs2,
+						 struct snd_usX2Y_substream *playbacksubs,
+						 int frame)
 {
 	int err, state;
 	struct urb *urb = playbacksubs->completed_urb;
@@ -177,10 +180,8 @@ static inline int usX2Y_usbpcm_usbframe_complete(snd_usX2Y_substream_t *capsubs,
 	if (NULL != urb) {
 		if (state == state_RUNNING)
 			usX2Y_urb_play_retire(playbacksubs, urb);
-		else
-			if (state >= state_PRERUNNING) {
-				atomic_inc(&playbacksubs->state);
-			}
+		else if (state >= state_PRERUNNING)
+			atomic_inc(&playbacksubs->state);
 	} else {
 		switch (state) {
 		case state_STARTING1:
@@ -207,10 +208,8 @@ static inline int usX2Y_usbpcm_usbframe_complete(snd_usX2Y_substream_t *capsubs,
 		if (state == state_RUNNING) {
 			if ((err = usX2Y_usbpcm_urb_capt_retire(capsubs)))
 				return err;
-		} else {
-			if (state >= state_PRERUNNING)
-				atomic_inc(&capsubs->state);
-		}
+		} else if (state >= state_PRERUNNING)
+			atomic_inc(&capsubs->state);
 		usX2Y_usbpcm_urb_capt_iso_advance(capsubs, capsubs->completed_urb);
 		if (NULL != capsubs2)
 			usX2Y_usbpcm_urb_capt_iso_advance(NULL, capsubs2->completed_urb);
@@ -229,12 +228,15 @@ static inline int usX2Y_usbpcm_usbframe_complete(snd_usX2Y_substream_t *capsubs,
 
 static void i_usX2Y_usbpcm_urb_complete(struct urb *urb, struct pt_regs *regs)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
-	snd_usX2Y_substream_t *capsubs, *capsubs2, *playbacksubs;
+	struct snd_usX2Y_substream *subs = urb->context;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *capsubs, *capsubs2, *playbacksubs;
 
 	if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
-		snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", usb_get_current_frame_number(usX2Y->chip.dev), subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", urb->status, urb->start_frame);
+		snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n",
+			    usb_get_current_frame_number(usX2Y->chip.dev),
+			    subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
+			    urb->status, urb->start_frame);
 		return;
 	}
 	if (unlikely(urb->status)) {
@@ -268,7 +270,7 @@ static void i_usX2Y_usbpcm_urb_complete(struct urb *urb, struct pt_regs *regs)
 }
 
 
-static void usX2Y_hwdep_urb_release(struct urb** urb)
+static void usX2Y_hwdep_urb_release(struct urb **urb)
 {
 	usb_kill_urb(*urb);
 	usb_free_urb(*urb);
@@ -278,7 +280,7 @@ static void usX2Y_hwdep_urb_release(struct urb** urb)
 /*
  * release a substream
  */
-static void usX2Y_usbpcm_urbs_release(snd_usX2Y_substream_t *subs)
+static void usX2Y_usbpcm_urbs_release(struct snd_usX2Y_substream *subs)
 {
 	int i;
 	snd_printdd("snd_usX2Y_urbs_release() %i\n", subs->endpoint);
@@ -286,7 +288,7 @@ static void usX2Y_usbpcm_urbs_release(snd_usX2Y_substream_t *subs)
 		usX2Y_hwdep_urb_release(subs->urb + i);
 }
 
-static void usX2Y_usbpcm_subs_startup_finish(usX2Ydev_t * usX2Y)
+static void usX2Y_usbpcm_subs_startup_finish(struct usX2Ydev * usX2Y)
 {
 	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_urb_complete);
 	usX2Y->prepare_subs = NULL;
@@ -294,14 +296,14 @@ static void usX2Y_usbpcm_subs_startup_finish(usX2Ydev_t * usX2Y)
 
 static void i_usX2Y_usbpcm_subs_startup(struct urb *urb, struct pt_regs *regs)
 {
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
-	snd_usX2Y_substream_t *prepare_subs = usX2Y->prepare_subs;
+	struct snd_usX2Y_substream *subs = urb->context;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs;
 	if (NULL != prepare_subs &&
 	    urb->start_frame == prepare_subs->urb[0]->start_frame) {
 		atomic_inc(&prepare_subs->state);
 		if (prepare_subs == usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]) {
-			snd_usX2Y_substream_t *cap_subs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
+			struct snd_usX2Y_substream *cap_subs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
 			if (cap_subs2 != NULL)
 				atomic_inc(&cap_subs2->state);
 		}
@@ -315,7 +317,7 @@ static void i_usX2Y_usbpcm_subs_startup(struct urb *urb, struct pt_regs *regs)
 /*
  * initialize a substream's urbs
  */
-static int usX2Y_usbpcm_urbs_allocate(snd_usX2Y_substream_t *subs)
+static int usX2Y_usbpcm_urbs_allocate(struct snd_usX2Y_substream *subs)
 {
 	int i;
 	unsigned int pipe;
@@ -330,7 +332,7 @@ static int usX2Y_usbpcm_urbs_allocate(snd_usX2Y_substream_t *subs)
 
 	/* allocate and initialize data urbs */
 	for (i = 0; i < NRURBS; i++) {
-		struct urb** purb = subs->urb + i;
+		struct urb **purb = subs->urb + i;
 		if (*purb) {
 			usb_kill_urb(*purb);
 			continue;
@@ -359,16 +361,16 @@ static int usX2Y_usbpcm_urbs_allocate(snd_usX2Y_substream_t *subs)
 /*
  * free the buffer
  */
-static int snd_usX2Y_usbpcm_hw_free(snd_pcm_substream_t *substream)
+static int snd_usX2Y_usbpcm_hw_free(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data,
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data,
 		*cap_subs2 = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
 	down(&subs->usX2Y->prepare_mutex);
 	snd_printdd("snd_usX2Y_usbpcm_hw_free(%p)\n", substream);
 
 	if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
-		snd_usX2Y_substream_t *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+		struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
 		atomic_set(&subs->state, state_STOPPED);
 		usX2Y_usbpcm_urbs_release(subs);
 		if (!cap_subs->pcm_substream ||
@@ -383,7 +385,7 @@ static int snd_usX2Y_usbpcm_hw_free(snd_pcm_substream_t *substream)
 				usX2Y_usbpcm_urbs_release(cap_subs2);
 		}
 	} else {
-		snd_usX2Y_substream_t *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+		struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
 		if (atomic_read(&playback_subs->state) < state_PREPARED) {
 			atomic_set(&subs->state, state_STOPPED);
 			if (NULL != cap_subs2)
@@ -397,20 +399,20 @@ static int snd_usX2Y_usbpcm_hw_free(snd_pcm_substream_t *substream)
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static void usX2Y_usbpcm_subs_startup(snd_usX2Y_substream_t *subs)
+static void usX2Y_usbpcm_subs_startup(struct snd_usX2Y_substream *subs)
 {
-	usX2Ydev_t * usX2Y = subs->usX2Y;
+	struct usX2Ydev * usX2Y = subs->usX2Y;
 	usX2Y->prepare_subs = subs;
 	subs->urb[0]->start_frame = -1;
 	smp_wmb();	// Make shure above modifications are seen by i_usX2Y_subs_startup()
 	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_subs_startup);
 }
 
-static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
+static int usX2Y_usbpcm_urbs_start(struct snd_usX2Y_substream *subs)
 {
 	int	p, u, err,
 		stream = subs->pcm_substream->stream;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
 
 	if (SNDRV_PCM_STREAM_CAPTURE == stream) {
 		usX2Y->hwdep_pcm_shm->captured_iso_head = -1;
@@ -418,7 +420,7 @@ static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
 	}
 
 	for (p = 0; 3 >= (stream + p); p += 2) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[stream + p];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[stream + p];
 		if (subs != NULL) {
 			if ((err = usX2Y_usbpcm_urbs_allocate(subs)) < 0)
 				return err;
@@ -427,7 +429,7 @@ static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
 	}
 
 	for (p = 0; p < 4; p++) {
-		snd_usX2Y_substream_t *subs = usX2Y->subs[p];
+		struct snd_usX2Y_substream *subs = usX2Y->subs[p];
 		if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
 			goto start;
 	}
@@ -437,7 +439,7 @@ static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
 	usX2Y_usbpcm_subs_startup(subs);
 	for (u = 0; u < NRURBS; u++) {
 		for (p = 0; 3 >= (stream + p); p += 2) {
-			snd_usX2Y_substream_t *subs = usX2Y->subs[stream + p];
+			struct snd_usX2Y_substream *subs = usX2Y->subs[stream + p];
 			if (subs != NULL) {
 				struct urb *urb = subs->urb[u];
 				if (usb_pipein(urb->pipe)) {
@@ -486,19 +488,19 @@ static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
  *
  * set format and initialize urbs
  */
-static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
+static int snd_usX2Y_usbpcm_prepare(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
-	usX2Ydev_t *usX2Y = subs->usX2Y;
-	snd_usX2Y_substream_t *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data;
+	struct usX2Ydev *usX2Y = subs->usX2Y;
+	struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
 	int err = 0;
 	snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
 
 	if (NULL == usX2Y->hwdep_pcm_shm) {
-		if (NULL == (usX2Y->hwdep_pcm_shm = snd_malloc_pages(sizeof(snd_usX2Y_hwdep_pcm_shm_t), GFP_KERNEL)))
+		if (NULL == (usX2Y->hwdep_pcm_shm = snd_malloc_pages(sizeof(struct snd_usX2Y_hwdep_pcm_shm), GFP_KERNEL)))
 			return -ENOMEM;
-		memset(usX2Y->hwdep_pcm_shm, 0, sizeof(snd_usX2Y_hwdep_pcm_shm_t));
+		memset(usX2Y->hwdep_pcm_shm, 0, sizeof(struct snd_usX2Y_hwdep_pcm_shm));
 	}
 
 	down(&usX2Y->prepare_mutex);
@@ -512,7 +514,8 @@ static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
 		if (usX2Y->rate != runtime->rate)
 			if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0)
 				goto up_prepare_mutex;
-		snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe");
+		snd_printdd("starting capture pipe for %s\n", subs == capsubs ?
+			    "self" : "playpipe");
 		if (0 > (err = usX2Y_usbpcm_urbs_start(capsubs)))
 			goto up_prepare_mutex;
 	}
@@ -520,8 +523,12 @@ static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
 	if (subs != capsubs) {
 		usX2Y->hwdep_pcm_shm->playback_iso_start = -1;
 		if (atomic_read(&subs->state) < state_PREPARED) {
-			while (usX2Y_iso_frames_per_buffer(runtime, usX2Y) > usX2Y->hwdep_pcm_shm->captured_iso_frames) {
-				snd_printd("Wait: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", usX2Y_iso_frames_per_buffer(runtime, usX2Y), usX2Y->hwdep_pcm_shm->captured_iso_frames);
+			while (usX2Y_iso_frames_per_buffer(runtime, usX2Y) >
+			       usX2Y->hwdep_pcm_shm->captured_iso_frames) {
+				snd_printdd("Wait: iso_frames_per_buffer=%i,"
+					    "captured_iso_frames=%i\n",
+					    usX2Y_iso_frames_per_buffer(runtime, usX2Y),
+					    usX2Y->hwdep_pcm_shm->captured_iso_frames);
 				if (msleep_interruptible(10)) {
 					err = -ERESTARTSYS;
 					goto up_prepare_mutex;
@@ -530,7 +537,9 @@ static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
 			if (0 > (err = usX2Y_usbpcm_urbs_start(subs)))
 				goto up_prepare_mutex;
 		}
-		snd_printd("Ready: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", usX2Y_iso_frames_per_buffer(runtime, usX2Y), usX2Y->hwdep_pcm_shm->captured_iso_frames);
+		snd_printdd("Ready: iso_frames_per_buffer=%i,captured_iso_frames=%i\n",
+			    usX2Y_iso_frames_per_buffer(runtime, usX2Y),
+			    usX2Y->hwdep_pcm_shm->captured_iso_frames);
 	} else
 		usX2Y->hwdep_pcm_shm->capture_iso_start = -1;
 
@@ -539,7 +548,7 @@ static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
 	return err;
 }
 
-static snd_pcm_hardware_t snd_usX2Y_4c =
+static struct snd_pcm_hardware snd_usX2Y_4c =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -560,11 +569,11 @@ static snd_pcm_hardware_t snd_usX2Y_4c =
 
 
 
-static int snd_usX2Y_usbpcm_open(snd_pcm_substream_t *substream)
+static int snd_usX2Y_usbpcm_open(struct snd_pcm_substream *substream)
 {
-	snd_usX2Y_substream_t	*subs = ((snd_usX2Y_substream_t **)
+	struct snd_usX2Y_substream	*subs = ((struct snd_usX2Y_substream **)
 					 snd_pcm_substream_chip(substream))[substream->stream];
-	snd_pcm_runtime_t	*runtime = substream->runtime;
+	struct snd_pcm_runtime	*runtime = substream->runtime;
 
 	if (!(subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS))
 		return -EBUSY;
@@ -578,18 +587,17 @@ static int snd_usX2Y_usbpcm_open(snd_pcm_substream_t *substream)
 }
 
 
-static int snd_usX2Y_usbpcm_close(snd_pcm_substream_t *substream)
+static int snd_usX2Y_usbpcm_close(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
-	snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
-	int err = 0;
-	snd_printd("\n");
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_usX2Y_substream *subs = runtime->private_data;
+
 	subs->pcm_substream = NULL;
-	return err;
+	return 0;
 }
 
 
-static snd_pcm_ops_t snd_usX2Y_usbpcm_ops = 
+static struct snd_pcm_ops snd_usX2Y_usbpcm_ops = 
 {
 	.open =		snd_usX2Y_usbpcm_open,
 	.close =	snd_usX2Y_usbpcm_close,
@@ -602,11 +610,11 @@ static snd_pcm_ops_t snd_usX2Y_usbpcm_ops =
 };
 
 
-static int usX2Y_pcms_lock_check(snd_card_t *card)
+static int usX2Y_pcms_lock_check(struct snd_card *card)
 {
 	struct list_head *list;
-	snd_device_t *dev;
-	snd_pcm_t *pcm;
+	struct snd_device *dev;
+	struct snd_pcm *pcm;
 	int err = 0;
 	list_for_each(list, &card->devices) {
 		dev = snd_device(list);
@@ -622,7 +630,7 @@ static int usX2Y_pcms_lock_check(snd_card_t *card)
 			continue;
 		pcm = dev->device_data;
 		for (s = 0; s < 2; ++s) {
-			snd_pcm_substream_t *substream;
+			struct snd_pcm_substream *substream;
 			substream = pcm->streams[s].substream;
 			if (substream && substream->ffile != NULL)
 				err = -EBUSY;
@@ -632,11 +640,11 @@ static int usX2Y_pcms_lock_check(snd_card_t *card)
 }
 
 
-static void usX2Y_pcms_unlock(snd_card_t *card)
+static void usX2Y_pcms_unlock(struct snd_card *card)
 {
 	struct list_head *list;
-	snd_device_t *dev;
-	snd_pcm_t *pcm;
+	struct snd_device *dev;
+	struct snd_pcm *pcm;
 	list_for_each(list, &card->devices) {
 		dev = snd_device(list);
 		if (dev->type != SNDRV_DEV_PCM)
@@ -647,10 +655,10 @@ static void usX2Y_pcms_unlock(snd_card_t *card)
 }
 
 
-static int snd_usX2Y_hwdep_pcm_open(snd_hwdep_t *hw, struct file *file)
+static int snd_usX2Y_hwdep_pcm_open(struct snd_hwdep *hw, struct file *file)
 {
 	// we need to be the first 
-	snd_card_t *card = hw->card;
+	struct snd_card *card = hw->card;
 	int err = usX2Y_pcms_lock_check(card);
 	if (0 == err)
 		usX2Y(card)->chip_status |= USX2Y_STAT_CHIP_MMAP_PCM_URBS;
@@ -659,9 +667,9 @@ static int snd_usX2Y_hwdep_pcm_open(snd_hwdep_t *hw, struct file *file)
 }
 
 
-static int snd_usX2Y_hwdep_pcm_release(snd_hwdep_t *hw, struct file *file)
+static int snd_usX2Y_hwdep_pcm_release(struct snd_hwdep *hw, struct file *file)
 {
-	snd_card_t *card = hw->card;
+	struct snd_card *card = hw->card;
 	int err = usX2Y_pcms_lock_check(card);
 	if (0 == err)
 		usX2Y(hw->card)->chip_status &= ~USX2Y_STAT_CHIP_MMAP_PCM_URBS;
@@ -689,7 +697,7 @@ static struct page * snd_usX2Y_hwdep_pcm_vm_nopage(struct vm_area_struct *area,
 	offset = area->vm_pgoff << PAGE_SHIFT;
 	offset += address - area->vm_start;
 	snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
-	vaddr = (char*)((usX2Ydev_t*)area->vm_private_data)->hwdep_pcm_shm + offset;
+	vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->hwdep_pcm_shm + offset;
 	page = virt_to_page(vaddr);
 	get_page(page);
 
@@ -707,17 +715,17 @@ static struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = {
 };
 
 
-static int snd_usX2Y_hwdep_pcm_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area)
+static int snd_usX2Y_hwdep_pcm_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
 {
 	unsigned long	size = (unsigned long)(area->vm_end - area->vm_start);
-	usX2Ydev_t	*usX2Y = (usX2Ydev_t*)hw->private_data;
+	struct usX2Ydev	*usX2Y = hw->private_data;
 
-	if (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+	if (!(usX2Y->chip_status & USX2Y_STAT_CHIP_INIT))
 		return -EBUSY;
 
 	/* if userspace tries to mmap beyond end of our buffer, fail */ 
-	if (size > PAGE_ALIGN(sizeof(snd_usX2Y_hwdep_pcm_shm_t))) {
-		snd_printd("%lu > %lu\n", size, (unsigned long)sizeof(snd_usX2Y_hwdep_pcm_shm_t)); 
+	if (size > PAGE_ALIGN(sizeof(struct snd_usX2Y_hwdep_pcm_shm))) {
+		snd_printd("%lu > %lu\n", size, (unsigned long)sizeof(struct snd_usX2Y_hwdep_pcm_shm)); 
 		return -EINVAL;
 	}
 
@@ -726,39 +734,31 @@ static int snd_usX2Y_hwdep_pcm_mmap(snd_hwdep_t * hw, struct file *filp, struct
 	}
 	area->vm_ops = &snd_usX2Y_hwdep_pcm_vm_ops;
 	area->vm_flags |= VM_RESERVED;
-	snd_printd("vm_flags=0x%lX\n", area->vm_flags);
 	area->vm_private_data = hw->private_data;
 	return 0;
 }
 
 
-static void snd_usX2Y_hwdep_pcm_private_free(snd_hwdep_t *hwdep)
+static void snd_usX2Y_hwdep_pcm_private_free(struct snd_hwdep *hwdep)
 {
-	usX2Ydev_t *usX2Y = (usX2Ydev_t *)hwdep->private_data;
+	struct usX2Ydev *usX2Y = hwdep->private_data;
 	if (NULL != usX2Y->hwdep_pcm_shm)
-		snd_free_pages(usX2Y->hwdep_pcm_shm, sizeof(snd_usX2Y_hwdep_pcm_shm_t));
+		snd_free_pages(usX2Y->hwdep_pcm_shm, sizeof(struct snd_usX2Y_hwdep_pcm_shm));
 }
 
 
-static void snd_usX2Y_usbpcm_private_free(snd_pcm_t *pcm)
-{
-	snd_pcm_lib_preallocate_free_for_all(pcm);
-}
-
-
-int usX2Y_hwdep_pcm_new(snd_card_t* card)
+int usX2Y_hwdep_pcm_new(struct snd_card *card)
 {
 	int err;
-	snd_hwdep_t *hw;
-	snd_pcm_t *pcm;
+	struct snd_hwdep *hw;
+	struct snd_pcm *pcm;
 	struct usb_device *dev = usX2Y(card)->chip.dev;
 	if (1 != nr_of_packs())
 		return 0;
 
-	if ((err = snd_hwdep_new(card, SND_USX2Y_USBPCM_ID, 1, &hw)) < 0) {
-		snd_printd("\n");
+	if ((err = snd_hwdep_new(card, SND_USX2Y_USBPCM_ID, 1, &hw)) < 0)
 		return err;
-	}
+
 	hw->iface = SNDRV_HWDEP_IFACE_USX2Y_PCM;
 	hw->private_data = usX2Y(card);
 	hw->private_free = snd_usX2Y_hwdep_pcm_private_free;
@@ -776,7 +776,6 @@ int usX2Y_hwdep_pcm_new(snd_card_t* card)
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_usbpcm_ops);
 
 	pcm->private_data = usX2Y(card)->subs;
-	pcm->private_free = snd_usX2Y_usbpcm_private_free;
 	pcm->info_flags = 0;
 
 	sprintf(pcm->name, NAME_ALLCAPS" hwdep Audio");
@@ -788,7 +787,6 @@ int usX2Y_hwdep_pcm_new(snd_card_t* card)
 	    					     SNDRV_DMA_TYPE_CONTINUOUS,
 	    					     snd_dma_continuous_data(GFP_KERNEL),
 						     64*1024, 128*1024))) {
-		snd_usX2Y_usbpcm_private_free(pcm);
 		return err;
 	}
 
@@ -798,7 +796,7 @@ int usX2Y_hwdep_pcm_new(snd_card_t* card)
 
 #else
 
-int usX2Y_hwdep_pcm_new(snd_card_t* card)
+int usX2Y_hwdep_pcm_new(struct snd_card *card)
 {
 	return 0;
 }
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.h b/sound/usb/usx2y/usx2yhwdeppcm.h
index d68f0cb..c3382fd 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.h
+++ b/sound/usb/usx2y/usx2yhwdeppcm.h
@@ -18,4 +18,3 @@ struct snd_usX2Y_hwdep_pcm_shm {
 	volatile unsigned captured_iso_frames;
 	int capture_iso_start;
 };
-typedef struct snd_usX2Y_hwdep_pcm_shm snd_usX2Y_hwdep_pcm_shm_t;