ALSA: usb - Quirk to disable master volume control in PCM2702
authorJavier Kohen <jkohen@users.sourceforge.net>
Tue, 17 Nov 2009 14:36:13 +0000 (15:36 +0100)
committerTakashi Iwai <tiwai@suse.de>
Tue, 17 Nov 2009 14:49:26 +0000 (15:49 +0100)
commit0c3cee57efcb1c79d62b1238c0d22afef4599247
tree3baa242e3976e67d778b9d10cffc04764510ae0a
parent828d44536cd24dfc085a8cf5a12364972398dcd4
ALSA: usb - Quirk to disable master volume control in PCM2702

Disable the master volume control in the PCM2702 chipset.

The datasheet documents two independent channel volume controls, one
master mute control and one master volume control. All controls are
fully functional except for the master volume control, which returns
USB stalls on all GET requests.

Signed-off-by: Javier Kohen <jkohen@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/usbmixer.c