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| author | Takashi Iwai <tiwai@suse.de> | 2009-12-01 15:58:15 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-01 15:58:15 +0100 |
| commit | b00615d163cd24fa98d155acfc1f9d81d6fe1103 (patch) | |
| tree | dde815788aaea3e336aaaf24763311ce63a22e1b /sound/usb/usbmixer.c | |
| parent | 75639e7ee1401b3876c7a00ffe96ea8027668690 (diff) | |
| parent | d6797322231af98b9bb4afb175dd614cf511e5f7 (diff) | |
Merge branch 'topic/pcm-dma-fix' into topic/core-change
Diffstat (limited to 'sound/usb/usbmixer.c')
| -rw-r--r-- | sound/usb/usbmixer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 9efcfd08d747..c998220b99c6 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 |