diff options
author | Steve deRosier <steve@cozybit.com> | 2010-04-25 14:40:46 -0700 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2010-04-26 14:21:26 -0400 |
commit | e9bd5bcde7af27ebb92bb866afde5ef5e4f3dc6c (patch) | |
tree | 38577d44639d8b0f00242d3f83971ea7db8977f0 /drivers/net/wireless/libertas_tf/if_usb.c | |
parent | 9a8b424ea8b64da83b6868423dcd0f3c259fdde0 (diff) | |
download | kernel_samsung_smdk4412-e9bd5bcde7af27ebb92bb866afde5ef5e4f3dc6c.zip kernel_samsung_smdk4412-e9bd5bcde7af27ebb92bb866afde5ef5e4f3dc6c.tar.gz kernel_samsung_smdk4412-e9bd5bcde7af27ebb92bb866afde5ef5e4f3dc6c.tar.bz2 |
libertastf: add configurable debug messages
Add the same type of configurable debug messages to libertas_tf as
already exist in the libertas driver. This has facilitated creation
of a interface specification and will facilitate future development
of this driver.
Signed-off-by: Steve deRosier <steve@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas_tf/if_usb.c')
-rw-r--r-- | drivers/net/wireless/libertas_tf/if_usb.c | 250 |
1 files changed, 209 insertions, 41 deletions
diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c index 3691c30..919451a 100644 --- a/drivers/net/wireless/libertas_tf/if_usb.c +++ b/drivers/net/wireless/libertas_tf/if_usb.c @@ -7,16 +7,20 @@ * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. */ +#define DRV_NAME "lbtf_usb" + +#include "deb_defs.h" +#include "libertas_tf.h" +#include "if_usb.h" + #include <linux/delay.h> #include <linux/moduleparam.h> #include <linux/firmware.h> #include <linux/netdevice.h> #include <linux/usb.h> -#define DRV_NAME "lbtf_usb" - -#include "libertas_tf.h" -#include "if_usb.h" +#define INSANEDEBUG 0 +#define lbtf_deb_usb2(...) do { if (INSANEDEBUG) lbtf_deb_usbd(__VA_ARGS__); } while (0) #define MESSAGE_HEADER_LEN 4 @@ -52,9 +56,14 @@ static int if_usb_reset_device(struct if_usb_card *cardp); */ static void if_usb_write_bulk_callback(struct urb *urb) { - if (urb->status != 0) - printk(KERN_INFO "libertastf: URB in failure status: %d\n", - urb->status); + if (urb->status != 0) { + /* print the failure status number for debug */ + pr_info("URB in failure status: %d\n", urb->status); + } else { + lbtf_deb_usb2(&urb->dev->dev, "URB status is successful\n"); + lbtf_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n", + urb->actual_length); + } } /** @@ -64,6 +73,8 @@ static void if_usb_write_bulk_callback(struct urb *urb) */ static void if_usb_free(struct if_usb_card *cardp) { + lbtf_deb_enter(LBTF_DEB_USB); + /* Unlink tx & rx urb */ usb_kill_urb(cardp->tx_urb); usb_kill_urb(cardp->rx_urb); @@ -80,6 +91,8 @@ static void if_usb_free(struct if_usb_card *cardp) kfree(cardp->ep_out_buf); cardp->ep_out_buf = NULL; + + lbtf_deb_leave(LBTF_DEB_USB); } static void if_usb_setup_firmware(struct lbtf_private *priv) @@ -87,23 +100,33 @@ static void if_usb_setup_firmware(struct lbtf_private *priv) struct if_usb_card *cardp = priv->card; struct cmd_ds_set_boot2_ver b2_cmd; + lbtf_deb_enter(LBTF_DEB_USB); + if_usb_submit_rx_urb(cardp); b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd)); b2_cmd.action = 0; b2_cmd.version = cardp->boot2_version; if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd)) - printk(KERN_INFO "libertastf: setting boot2 version failed\n"); + lbtf_deb_usb("Setting boot2 version failed\n"); + + lbtf_deb_leave(LBTF_DEB_USB); } static void if_usb_fw_timeo(unsigned long priv) { struct if_usb_card *cardp = (void *)priv; - if (!cardp->fwdnldover) + lbtf_deb_enter(LBTF_DEB_USB); + if (!cardp->fwdnldover) { /* Download timed out */ cardp->priv->surpriseremoved = 1; + pr_err("Download timed out\n"); + } else { + lbtf_deb_usb("Download complete, no event. Assuming success\n"); + } wake_up(&cardp->fw_wq); + lbtf_deb_leave(LBTF_DEB_USB); } /** @@ -124,11 +147,14 @@ static int if_usb_probe(struct usb_interface *intf, struct if_usb_card *cardp; int i; + lbtf_deb_enter(LBTF_DEB_USB); udev = interface_to_usbdev(intf); cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL); - if (!cardp) + if (!cardp) { + pr_err("Out of memory allocating private data.\n"); goto error; + } setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp); init_waitqueue_head(&cardp->fw_wq); @@ -136,38 +162,62 @@ static int if_usb_probe(struct usb_interface *intf, cardp->udev = udev; iface_desc = intf->cur_altsetting; + lbtf_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" + " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", + le16_to_cpu(udev->descriptor.bcdUSB), + udev->descriptor.bDeviceClass, + udev->descriptor.bDeviceSubClass, + udev->descriptor.bDeviceProtocol); + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; if (usb_endpoint_is_bulk_in(endpoint)) { cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize); cardp->ep_in = usb_endpoint_num(endpoint); + + lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in); + lbtf_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size); } else if (usb_endpoint_is_bulk_out(endpoint)) { cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize); cardp->ep_out = usb_endpoint_num(endpoint); + + lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out); + lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n", + cardp->ep_out_size); } } - if (!cardp->ep_out_size || !cardp->ep_in_size) + if (!cardp->ep_out_size || !cardp->ep_in_size) { + lbtf_deb_usbd(&udev->dev, "Endpoints not found\n"); /* Endpoints not found */ goto dealloc; + } cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!cardp->rx_urb) + if (!cardp->rx_urb) { + lbtf_deb_usbd(&udev->dev, "Rx URB allocation failed\n"); goto dealloc; + } cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!cardp->tx_urb) + if (!cardp->tx_urb) { + lbtf_deb_usbd(&udev->dev, "Tx URB allocation failed\n"); goto dealloc; + } cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!cardp->cmd_urb) + if (!cardp->cmd_urb) { + lbtf_deb_usbd(&udev->dev, "Cmd URB allocation failed\n"); goto dealloc; + } cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL); - if (!cardp->ep_out_buf) + if (!cardp->ep_out_buf) { + lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n"); goto dealloc; + } priv = lbtf_add_card(cardp, &udev->dev); if (!priv) @@ -188,6 +238,7 @@ static int if_usb_probe(struct usb_interface *intf, dealloc: if_usb_free(cardp); error: +lbtf_deb_leave(LBTF_DEB_MAIN); return -ENOMEM; } @@ -201,6 +252,8 @@ static void if_usb_disconnect(struct usb_interface *intf) struct if_usb_card *cardp = usb_get_intfdata(intf); struct lbtf_private *priv = (struct lbtf_private *) cardp->priv; + lbtf_deb_enter(LBTF_DEB_MAIN); + if_usb_reset_device(cardp); if (priv) @@ -211,6 +264,8 @@ static void if_usb_disconnect(struct usb_interface *intf) usb_set_intfdata(intf, NULL); usb_put_dev(interface_to_usbdev(intf)); + + lbtf_deb_leave(LBTF_DEB_MAIN); } /** @@ -225,6 +280,8 @@ static int if_usb_send_fw_pkt(struct if_usb_card *cardp) struct fwdata *fwdata = cardp->ep_out_buf; u8 *firmware = (u8 *) cardp->fw->data; + lbtf_deb_enter(LBTF_DEB_FW); + /* If we got a CRC failure on the last block, back up and retry it */ if (!cardp->CRC_OK) { @@ -232,6 +289,9 @@ static int if_usb_send_fw_pkt(struct if_usb_card *cardp) cardp->fwseqnum--; } + lbtf_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n", + cardp->totalbytes); + /* struct fwdata (which we sent to the card) has an extra __le32 field in between the header and the data, which is not in the struct fwheader in the actual @@ -245,18 +305,33 @@ static int if_usb_send_fw_pkt(struct if_usb_card *cardp) memcpy(fwdata->data, &firmware[cardp->totalbytes], le32_to_cpu(fwdata->hdr.datalength)); + lbtf_deb_usb2(&cardp->udev->dev, "Data length = %d\n", + le32_to_cpu(fwdata->hdr.datalength)); + fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum); cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength); usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) + le32_to_cpu(fwdata->hdr.datalength), 0); - if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) + if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { + lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n"); + lbtf_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n", + cardp->fwseqnum, cardp->totalbytes); + } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) { + lbtf_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n"); + lbtf_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n"); + /* Host has finished FW downloading * Donwloading FW JUMP BLOCK */ cardp->fwfinalblk = 1; + } + lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n", + cardp->totalbytes); + + lbtf_deb_leave(LBTF_DEB_FW); return 0; } @@ -265,6 +340,8 @@ static int if_usb_reset_device(struct if_usb_card *cardp) struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4; int ret; + lbtf_deb_enter(LBTF_DEB_USB); + *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET); @@ -279,6 +356,8 @@ static int if_usb_reset_device(struct if_usb_card *cardp) ret = usb_reset_device(cardp->udev); msleep(100); + lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); + return ret; } EXPORT_SYMBOL_GPL(if_usb_reset_device); @@ -296,11 +375,15 @@ EXPORT_SYMBOL_GPL(if_usb_reset_device); static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb, u8 data) { + int ret = -1; struct urb *urb; + lbtf_deb_enter(LBTF_DEB_USB); /* check if device is removed */ - if (cardp->priv->surpriseremoved) - return -1; + if (cardp->priv->surpriseremoved) { + lbtf_deb_usbd(&cardp->udev->dev, "Device removed\n"); + goto tx_ret; + } if (data) urb = cardp->tx_urb; @@ -314,19 +397,34 @@ static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, urb->transfer_flags |= URB_ZERO_PACKET; - if (usb_submit_urb(urb, GFP_ATOMIC)) - return -1; - return 0; + if (usb_submit_urb(urb, GFP_ATOMIC)) { + lbtf_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret); + goto tx_ret; + } + + lbtf_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n"); + + ret = 0; + +tx_ret: + lbtf_deb_leave(LBTF_DEB_USB); + return ret; } static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, void (*callbackfn)(struct urb *urb)) { struct sk_buff *skb; + int ret = -1; + + lbtf_deb_enter(LBTF_DEB_USB); skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE); - if (!skb) + if (!skb) { + pr_err("No free skb\n"); + lbtf_deb_leave(LBTF_DEB_USB); return -1; + } cardp->rx_skb = skb; @@ -338,12 +436,19 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; - if (usb_submit_urb(cardp->rx_urb, GFP_ATOMIC)) { + lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); + ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC); + if (ret) { + lbtf_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret); kfree_skb(skb); cardp->rx_skb = NULL; + lbtf_deb_leave(LBTF_DEB_USB); return -1; - } else + } else { + lbtf_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n"); + lbtf_deb_leave(LBTF_DEB_USB); return 0; + } } static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp) @@ -363,8 +468,12 @@ static void if_usb_receive_fwload(struct urb *urb) struct fwsyncheader *syncfwheader; struct bootcmdresp bcmdresp; + lbtf_deb_enter(LBTF_DEB_USB); if (urb->status) { + lbtf_deb_usbd(&cardp->udev->dev, + "URB status is failed during fw load\n"); kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); return; } @@ -372,12 +481,17 @@ static void if_usb_receive_fwload(struct urb *urb) __le32 *tmp = (__le32 *)(skb->data); if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) && - tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) + tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) { /* Firmware ready event received */ + pr_info("Firmware ready event received\n"); wake_up(&cardp->fw_wq); - else + } else { + lbtf_deb_usb("Waiting for confirmation; got %x %x\n", + le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1])); if_usb_submit_rx_urb_fwload(cardp); + } kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); return; } if (cardp->bootcmdresp <= 0) { @@ -388,34 +502,60 @@ static void if_usb_receive_fwload(struct urb *urb) if_usb_submit_rx_urb_fwload(cardp); cardp->bootcmdresp = 1; /* Received valid boot command response */ + lbtf_deb_usbd(&cardp->udev->dev, + "Received valid boot command response\n"); + lbtf_deb_leave(LBTF_DEB_USB); return; } if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) || bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) || - bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) + bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) { + if (!cardp->bootcmdresp) + pr_info("Firmware already seems alive; resetting\n"); cardp->bootcmdresp = -1; - } else if (bcmdresp.cmd == BOOT_CMD_FW_BY_USB && - bcmdresp.result == BOOT_CMD_RESP_OK) + } else { + pr_info("boot cmd response wrong magic number (0x%x)\n", + le32_to_cpu(bcmdresp.magic)); + } + } else if (bcmdresp.cmd != BOOT_CMD_FW_BY_USB) { + pr_info("boot cmd response cmd_tag error (%d)\n", + bcmdresp.cmd); + } else if (bcmdresp.result != BOOT_CMD_RESP_OK) { + pr_info("boot cmd response result error (%d)\n", + bcmdresp.result); + } else { cardp->bootcmdresp = 1; + lbtf_deb_usbd(&cardp->udev->dev, + "Received valid boot command response\n"); + } kfree_skb(skb); if_usb_submit_rx_urb_fwload(cardp); + lbtf_deb_leave(LBTF_DEB_USB); return; } syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); if (!syncfwheader) { + lbtf_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); return; } memcpy(syncfwheader, skb->data, sizeof(struct fwsyncheader)); - if (!syncfwheader->cmd) + if (!syncfwheader->cmd) { + lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n"); + lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n", + le32_to_cpu(syncfwheader->seqnum)); cardp->CRC_OK = 1; - else + } else { + lbtf_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n"); cardp->CRC_OK = 0; + } + kfree_skb(skb); /* reschedule timer for 200ms hence */ @@ -433,6 +573,7 @@ static void if_usb_receive_fwload(struct urb *urb) kfree(syncfwheader); + lbtf_deb_leave(LBTF_DEB_USB); return; } @@ -444,6 +585,7 @@ static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, { if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { + lbtf_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n"); kfree_skb(skb); return; } @@ -459,6 +601,8 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, struct lbtf_private *priv) { if (recvlength > LBS_CMD_BUFFER_SIZE) { + lbtf_deb_usbd(&cardp->udev->dev, + "The receive buffer is too large\n"); kfree_skb(skb); return; } @@ -488,16 +632,24 @@ static void if_usb_receive(struct urb *urb) uint32_t recvtype = 0; __le32 *pkt = (__le32 *) skb->data; + lbtf_deb_enter(LBTF_DEB_USB); + if (recvlength) { if (urb->status) { + lbtf_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n", + urb->status); kfree_skb(skb); goto setup_for_next; } recvbuff = skb->data; recvtype = le32_to_cpu(pkt[0]); + lbtf_deb_usbd(&cardp->udev->dev, + "Recv length = 0x%x, Recv type = 0x%X\n", + recvlength, recvtype); } else if (urb->status) { kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); return; } @@ -514,6 +666,7 @@ static void if_usb_receive(struct urb *urb) { /* Event cause handling */ u32 event_cause = le32_to_cpu(pkt[1]); + lbtf_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event_cause); /* Icky undocumented magic special case */ if (event_cause & 0xffff0000) { @@ -528,21 +681,22 @@ static void if_usb_receive(struct urb *urb) } else if (event_cause == LBTF_EVENT_BCN_SENT) lbtf_bcn_sent(priv); else - printk(KERN_DEBUG + lbtf_deb_usbd(&cardp->udev->dev, "Unsupported notification %d received\n", event_cause); kfree_skb(skb); break; } default: - printk(KERN_DEBUG "libertastf: unknown command type 0x%X\n", - recvtype); + lbtf_deb_usbd(&cardp->udev->dev, + "libertastf: unknown command type 0x%X\n", recvtype); kfree_skb(skb); break; } setup_for_next: if_usb_submit_rx_urb(cardp); + lbtf_deb_leave(LBTF_DEB_USB); } /** @@ -561,6 +715,9 @@ static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type, struct if_usb_card *cardp = priv->card; u8 data = 0; + lbtf_deb_usbd(&cardp->udev->dev, "*** type = %u\n", type); + lbtf_deb_usbd(&cardp->udev->dev, "size after = %d\n", nb); + if (type == MVMS_CMD) { *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); } else { @@ -638,8 +795,10 @@ static int check_fwfile_format(const u8 *data, u32 totlen) } while (!exit); if (ret) - printk(KERN_INFO - "libertastf: firmware file format check failed\n"); + pr_err("firmware file format check FAIL\n"); + else + lbtf_deb_fw("firmware file format check PASS\n"); + return ret; } @@ -650,10 +809,12 @@ static int if_usb_prog_firmware(struct if_usb_card *cardp) static int reset_count = 10; int ret = 0; + lbtf_deb_enter(LBTF_DEB_USB); + ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev); if (ret < 0) { - printk(KERN_INFO "libertastf: firmware %s not found\n", - lbtf_fw_name); + pr_err("request_firmware() failed with %#x\n", ret); + pr_err("firmware %s not found\n", lbtf_fw_name); goto done; } @@ -662,6 +823,7 @@ static int if_usb_prog_firmware(struct if_usb_card *cardp) restart: if (if_usb_submit_rx_urb_fwload(cardp) < 0) { + lbtf_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); ret = -1; goto release_fw; } @@ -708,14 +870,13 @@ restart: usb_kill_urb(cardp->rx_urb); if (!cardp->fwdnldover) { - printk(KERN_INFO "libertastf: failed to load fw," - " resetting device!\n"); + pr_info("failed to load fw, resetting device!\n"); if (--reset_count >= 0) { if_usb_reset_device(cardp); goto restart; } - printk(KERN_INFO "libertastf: fw download failure\n"); + pr_info("FW download failure, time = %d ms\n", i * 100); ret = -1; goto release_fw; } @@ -729,6 +890,7 @@ restart: if_usb_setup_firmware(cardp->priv); done: + lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); return ret; } EXPORT_SYMBOL_GPL(if_usb_prog_firmware); @@ -750,13 +912,19 @@ static int __init if_usb_init_module(void) { int ret = 0; + lbtf_deb_enter(LBTF_DEB_MAIN); + ret = usb_register(&if_usb_driver); + + lbtf_deb_leave_args(LBTF_DEB_MAIN, "ret %d", ret); return ret; } static void __exit if_usb_exit_module(void) { + lbtf_deb_enter(LBTF_DEB_MAIN); usb_deregister(&if_usb_driver); + lbtf_deb_leave(LBTF_DEB_MAIN); } module_init(if_usb_init_module); |