Commit 140d37de authored Aug 10, 2013 by Maksim A. Boyko Committed by Takashi Iwai Aug 12, 2013

ALSA: usb-audio: Fix invalid volume resolution for Logitech HD Webcam C525



Add the volume control quirk for avoiding the kernel warning
for the Logitech HD Webcam C525
as in the similar commit 36691e1b
for the Logitech HD Webcam C310.

Reported-by: Maksim Boyko <maksim.a.boyko@gmail.com>
Tested-by: Maksim Boyko <maksim.a.boyko@gmail.com>
Cc: <stable@vger.kernel.org> # 3.10.5+
Signed-off-by: Maksim Boyko <maksim.a.boyko@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent f69910dd

sound/usb/mixer.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -888,6 +888,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
		case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */
		case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */
		case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */
		case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */
		case USB_ID(0x046d, 0x0991):
		/* Most audio usb devices lie about volume resolution.
		* Most Logitech webcams have res = 384.