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authorIngo Molnar <mingo@elte.hu>2009-12-07 13:14:12 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-07 13:14:18 +0100
commitf3d607c6b39bd9cb5000e03e2c0dc2afe1241374 (patch)
tree885b5e0b5bb3d87efc4bfbde69feff2ece32ecac /sound/usb/usbmixer.c
parent8055039c2a2454c7159dcbde3161943b757a6e0e (diff)
parent6ec22f9b037fc0c2e00ddb7023fad279c365324d (diff)
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Merge branch 'linus' into x86/urgent
Merge reason: we want to queue up a dependent fix. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'sound/usb/usbmixer.c')
-rw-r--r--sound/usb/usbmixer.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 9efcfd0..c998220 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -1071,6 +1071,15 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsig
channels = (ftr[0] - 7) / csize - 1;
master_bits = snd_usb_combine_bytes(ftr + 6, csize);
+ /* master configuration quirks */
+ switch (state->chip->usb_id) {
+ case USB_ID(0x08bb, 0x2702):
+ snd_printk(KERN_INFO
+ "usbmixer: master volume quirk for PCM2702 chip\n");
+ /* disable non-functional volume control */
+ master_bits &= ~(1 << (USB_FEATURE_VOLUME - 1));
+ break;
+ }
if (channels > 0)
first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize);
else