[PATCH 3.13.y-ckt 28/56] ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion
Kamal Mostafa
kamal at canonical.com
Wed Jul 8 15:40:09 UTC 2015
3.13.11-ckt23 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Wolfram Sang <wsa at the-dreams.de>
commit 1ef9f0583514508bc93427106ceef3215e4eb1a5 upstream.
Fix this from the logs:
usb 7-1: New USB device found, idVendor=046d, idProduct=08ca
...
usb 7-1: Warning! Unlikely big volume range (=3072), cval->res is probably wrong.
usb 7-1: [5] FU [Mic Capture Volume] ch = 1, val = 4608/7680/1
Signed-off-by: Wolfram Sang <wsa at the-dreams.de>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
sound/usb/mixer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 2d37b3f..c601033 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -891,6 +891,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
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, 0x08ca): /* Logitech Quickcam Fusion */
case USB_ID(0x046d, 0x0991):
/* Most audio usb devices lie about volume resolution.
* Most Logitech webcams have res = 384.
--
1.9.1
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