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

From: "Shuming [范書銘]" <shumingf@realtek.com>
To: Jaroslav Kysela <perex@perex.cz>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"tiwai@suse.de" <tiwai@suse.de>,
	"lgirdwood@gmail.com" <lgirdwood@gmail.com>
Cc: "Oder Chiou" <oder_chiou@realtek.com>,
	"Jack Yu" <jack.yu@realtek.com>,
	"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
	"lars@metafoo.de" <lars@metafoo.de>,
	"Hui Wang" <hui.wang@canonical.com>,
	"Derek [方德義]" <derek.fang@realtek.com>,
	"Yijun.Shen@dell.com" <Yijun.Shen@dell.com>,
	"Flove(HsinFu)" <flove@realtek.com>
Subject: RE: [PATCH] ALSA: usb-audio: add the profile name of Dell desktop
Date: Thu, 11 Nov 2021 10:40:01 +0000	[thread overview]
Message-ID: <7be27e54d3ce41b2ade3e062c939ece2@realtek.com> (raw)
In-Reply-To: 3654e59d-52bd-5442-39d1-f017f5a14b2b@perex.cz

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@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@Latitude-5410:/usr/share/alsa/ucm2/USB-Audio# alsaucm --version
alsaucm: version 1.2.2

root@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?