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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 05:38:51 +0900
commit92c635bfcd86aa182b9a6734426e61e1420579d7 (patch)
treef2413c9f1f93d7b93645ce9fb7e2f9bdb5d5685f /sound
parentc8ab5d973cd5439ae0223ca259f0e20963905bef (diff)
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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 ab23869c01b..8a818a4573a 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1247,6 +1247,13 @@ 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);