At Fri, 29 May 2015 19:50:56 +0900, Wolfram Sang wrote:

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@the-dreams.de

Applied now (with Cc to stable). Thanks!

Takashi

---

sound/usb/mixer.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 3e2ef61c627b83..4256fdedbd8009 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.

-- 2.1.4