[alsa-devel] [PATCH] ALSA: usb: Work around CM6631 sample rate change bug

Clemens Ladisch clemens at ladisch.de
Tue Mar 5 08:55:03 CET 2013

Torstein Hegge wrote:
> On Mon, Mar 04, 2013 at 11:31:59AM +0100, Clemens Ladisch wrote:
>>>>> On 02.03.2013 14:04, Torstein Hegge wrote:
>>>>>> +	case USB_ID(0x0d8c, 0x0304): /* C-Media - Schiit USB Interface */
>>>>>> +	case USB_ID(0x0d8c, 0x0309): /* C-Media CM6631 */
>> There are other CM6631-based devices.
> Most CM6631 devices with sample rate change problems reported has one of those
> two ids, as far as I can see. The Asus Xonar Essence One uses the CM6631, but
> it is listed in the wiki as supported, without any comments about any such
> issue.

I vaguely remember some such report.  Better add this (0b05:17a8).

> I don't know what vendor/product id the Emotiva XDA-2 reports.

>From that driver's .inf file:

%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0311&MI_00	;CM6610A
%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0312&MI_00	;CM6620A
%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0313&MI_00	;CM6630A
%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0314&MI_00	;CM6631A
%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0319&MI_00	;CM6631A
%CMUACWO.DeviceDesc%=CMUACWO,USB\VID_0D8C&PID_0315&MI_00	;CM6632A

(200c = Reloop, 054c = Sony)


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