On Mon, 2020-01-27 at 09:07 +0100, Jaroslav Kysela wrote: > Dne 27. 01. 20 v 4:38 Tanu Kaskinen napsal(a): > > Hi all, > > > > I was looking at the UCM files, and most paths have the following > > structure: > > > > <cardname>/<cardname>.conf > > > > I noticed that the "HDA Intel PCH" configuration uses some other > > scheme: > > > > HDA Intel PCH/HDAudio-DualCodecs.conf > > HDA Intel PCH/HDAudio-Gigabyte-ALC1220DualCodecs.conf > > HDA Intel PCH/HDAudio-Lenovo-DualCodecs.conf > > > > How are the directory and file names determined? If I write > > configuration for some random sound card that I don't have myself, > > where do I find the various identifiers in the alsa-info output? I > > don't even really know for sure what the <cardname> in the first > > example is, I've been assuming it's the name that appears in the square > > brackets in /proc/asound/cards. > > The ucm has scheme <longname>/<longname>.conf and > <drivername>/<drivername>.conf (fallback). > > The ucm2 has scheme <drivername>/<longname>.conf and > <drivername>/<drivername>.conf (fallback). > > Example proc output: > > 2 [device ]: USB-Audio - USB Video device > 317GAWCM001LON3BC1AZ USB Video device at > usb-0000:00:14.0-4.2.4, high speed > > The driver name is 'USB-Audio' here. The longname is '317GAWCM001LON3BC1AZ USB > Video device at usb-0000:00:14.0-4.2.4, high speed' here. The name in brackets > is the user selectable identifier for the card (card id). It can be used > instead the sound card number. Thanks, seems pretty straightforward! > > I think the lookup logic should be explained in the ucm2/README.md > > file. I can write a patch if someone expains the logic to me, but > > probably it's easier if you just write the patch yourself. > > Yes, a better documentation for the internals is missing. Unfortunately, I hit > other real problems with the current UCM logic and trying to resolve them. > Unfortunately, I am interrupted with other things so things are going slowly > than I want. Does this mean that the file lookup logic is likely to still change? -- Tanu https://www.patreon.com/tanuk https://liberapay.com/tanuk _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
