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| author | Takashi Iwai <tiwai@suse.de> | 2010-07-08 16:55:26 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-07-08 16:55:26 +0200 |
| commit | 7645054f181404e6a28c616b307c4d2562423a50 (patch) | |
| tree | bcc8f969dc6f0f6e2a4acede51db5dd436a06403 | |
| parent | Merge branch 'fix/hda' into for-linus (diff) | |
| parent | ALSA: usb-audio - Add volume resolution quirk for some Logitech webcams (diff) | |
| download | linux-7645054f181404e6a28c616b307c4d2562423a50.tar.xz linux-7645054f181404e6a28c616b307c4d2562423a50.zip | |
Merge branch 'fix/misc' into for-linus
| -rw-r--r-- | sound/usb/mixer.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 6939d0f517d9..736d134cc03c 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1107,6 +1107,19 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, } break; + case USB_ID(0x046d, 0x0809): + case USB_ID(0x046d, 0x0991): + /* Most audio usb devices lie about volume resolution. + * Most Logitech webcams have res = 384. + * Proboly there is some logitech magic behind this number --fishor + */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + snd_printk(KERN_INFO + "set resolution quirk: cval->res = 384\n"); + cval->res = 384; + } + break; + } snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |