Commit d0ba0f6a authored Dec 09, 2016 by Con Kolivas Committed by Greg Kroah-Hartman Jan 06, 2017

ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks



commit 82ffb6fc637150b279f49e174166d2aa3853eaf4 upstream.

The Logitech QuickCam Communicate Deluxe/S7500 microphone fails with the
following warning.

[    6.778995] usb 2-1.2.2.2: Warning! Unlikely big volume range (=3072),
cval->res is probably wrong.
[    6.778996] usb 2-1.2.2.2: [5] FU [Mic Capture Volume] ch = 1, val =
4608/7680/1

Adding it to the list of devices in volume_control_quirks makes it work
properly, fixing related typo.

Signed-off-by: Con Kolivas <kernel@kolivas.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent cbb2a256

sound/usb/mixer.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -931,9 +931,10 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
		case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */
		case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */
		case USB_ID(0x046d, 0x0991):
		case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */
		/* Most audio usb devices lie about volume resolution.
		* Most Logitech webcams have res = 384.
		* Proboly there is some logitech magic behind this number --fishor
		* Probably there is some logitech magic behind this number --fishor
		*/
		if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
		usb_audio_info(chip,