linux-kernel - [PATCH 3.12 020/235] ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control

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Message-Id: <5bf1a774bcfb67660f2e9780a742d7cd4c2c2934.1485514374.git.jslaby@suse.cz>
Date:   Fri, 27 Jan 2017 11:52:33 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Con Kolivas <con@...ivas.org>,
        Con Kolivas <kernel@...ivas.org>, Takashi Iwai <tiwai@...e.de>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 020/235] ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks

From: Con Kolivas <con@...ivas.org>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

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@...ivas.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 sound/usb/mixer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 86f46b46f214..afcaafce643c 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -893,9 +893,10 @@ 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")) {
 			snd_printk(KERN_INFO
-- 
2.11.0