[alsa-devel] [PATCH] usb-audio: Fix invalid volume resolution for Logitech HD Webcam C525

[Takashi Iwai]

At Sat, 10 Aug 2013 12:20:02 +0400,
Maksim A. Boyko wrote:
> 
> Add the volume control quirk for avoiding the kernel warning
> for the Logitech HD Webcam C525
> as in the similar commit 36691e1be6ec551eef4a5225f126a281f8c051c2
> for the Logitech HD Webcam C310.
> 
> Reported-by: Maksim Boyko <maksim.a.boyko at gmail.com>
> Tested-by: Maksim Boyko <maksim.a.boyko at gmail.com>
> Cc: <stable at vger.kernel.org> # 3.10.5+
> Signed-off-by: Maksim Boyko <maksim.a.boyko at gmail.com>

Thanks, applied.


Takashi

> --
>   sound/usb/mixer.c |    1 +
>   1 file changed, 1 insertion(+)
> 
> --- linux-3.10.5-orig/sound/usb/mixer.c	2013-08-04 12:51:49.000000000
> +0400
> +++ linux-3.10.5/sound/usb/mixer.c	2013-08-06 21:12:42.274197287
> +0400
> @@ -888,6 +888,7 @@ static void volume_control_quirks(struct
>   	case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */
>   	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, 0x0991):
>   	/* Most audio usb devices lie about volume resolution.
>   	 * Most Logitech webcams have res = 384.
> 
> 
> --
> WBR, Maksim
> 
> P.S. Please, use this patch due to it should have correct tab symbols.
> 
> 
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