From: Wolfram Sang Date: Fri, 29 May 2015 10:50:56 +0000 (+0900) Subject: ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion X-Git-Tag: firefly_0821_release~176^2~1642^2~16 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1ef9f0583514508bc93427106ceef3215e4eb1a5;p=firefly-linux-kernel-4.4.55.git ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion 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 Cc: Signed-off-by: Takashi Iwai --- diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 3e2ef61c627b..4256fdedbd80 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -918,6 +918,7 @@ 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.