[PATCH] ALSA: usb-audio: add the profile name of Dell desktop

[Hui Wang]

On 11/11/21 6:40 PM, Shuming [范書銘] wrote:
> Hi Jaroslav,
>
>>>>> Add the profile name to let userspace pick correct UCM profile
>>>> It's no longer necessary to force the card names in the drivers. UCM
>>>> can match the USB vendor / device IDs from the 'components' string, too.
>>>>
>>>> I think that we should abandon this way of the UCM configuration
>>>> selection for new devices with device IDs. The kernel already
>>>> exports necessary information to select the right UCM configuration
>>>> in the user
>>> space.
>>>
>>> Untested example:
>>>
>>>
>> https://github.com/perexg/alsa-ucm-conf/commit/74ced65440b5011bbec1680
>>> b2804c8a9c82b5152
>>>
>>> 					Jaroslav
>> Thanks a lot. I will take your example to test.
> I had tested with USB-Audio.conf that the system seems not to apply the UCM config.
>
> The related info of the test machine shows below.
> root at Latitude-5410:/usr/share/alsa/ucm2/USB-Audio# cat /proc/asound/cards
>   0 [PCH            ]: HDA-Intel - HDA Intel PCH
>                        HDA Intel PCH at 0xcc338000 irq 153
>   1 [Rear           ]: USB-Audio - USB audio Rear
>                        Generic USB audio Rear at usb-0000:00:14.0-2.2, high speed
>   2 [FRONT          ]: USB-Audio - USB audio FRONT
>                        Generic USB audio FRONT at usb-0000:00:14.0-2.1, high speed
>
> root at Latitude-5410:/usr/share/alsa/ucm2/USB-Audio# alsaucm --version
> alsaucm: version 1.2.2
>
> root at Latitude-5410:/usr/share/alsa/ucm2/USB-Audio# lsusb
> Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 002: ID 8564:4000 Transcend Information, Inc. RDF8
> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 001 Device 003: ID 0a5c:5842 Broadcom Corp. 58200
> Bus 001 Device 002: ID 0bda:5532 Realtek Semiconductor Corp. Integrated_Webcam_HD
> Bus 001 Device 008: ID 04f3:0235 Elan Microelectronics Corp. Optical Mouse
> Bus 001 Device 007: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory
> Bus 001 Device 006: ID 0bda:4c55 Realtek Semiconductor Corp. USB2.0 Hub
> Bus 001 Device 009: ID 0bda:4c54 Realtek Semiconductor Corp.
>
> May I ask you to give me some suggestions?
Looks like the alsa-lib in the ubuntu 20.04 doesn't support it.
>