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authorDavid Henningsson <david.henningsson@canonical.com>2012-09-20 10:20:41 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-13 05:28:10 +0900
commit8f5f4d275fd3b6cfd772b1d583f60c9d26818173 (patch)
tree545208d8b9cf7f8977a9c04a6386a6bb4d3fa4e3 /sound
parent7aa79b178e05175b39ae94f28289e036f37ac455 (diff)
ALSA: usb - disable broken hw volume for Tenx TP6911
commit c10514394ef9e8de93a4ad8c8904d71dcd82c122 upstream. While going through Ubuntu bugs, I discovered this patch being posted and a confirmation that the patch works as expected. Finding out how the hw volume really works would be preferrable to just disabling the broken one, but this would be better than nothing. Credit: sndfnsdfin (qawsnews) BugLink: https://bugs.launchpad.net/bugs/559939 Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/mixer.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 0de7cbd99ea0..9363a8cb9e46 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1246,6 +1246,13 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void
/* disable non-functional volume control */
master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME);
break;
+ case USB_ID(0x1130, 0xf211):
+ snd_printk(KERN_INFO
+ "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n");
+ /* disable non-functional volume control */
+ channels = 0;
+ break;
+
}
if (channels > 0)
first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize);