Hi Alsa development team,
First of all: thank you for your great work on the Alsa library.
I worked around a problem with the support of the TOSLINK output of my
ROG STRIX B650E-I GAMING WIFI motherboard by modifying
"/usr/share/alsa/cards/USB-Audio.conf". I made some very crude
modifications, just to get it to work. I was not yet able to work out
completely how to fix this the proper way. I would appreciate it you
could suggest a proper solution. I'd gladly test it and perhaps you'd
want to add it to the alsa package.
I've attached a zip file with information about the solution and
alsa-info.sh output. (As you'll notice in the .asoundrc in attached
alsa-info file in, it took me some attempts to solve the issue :-) ).
My goal was to have full alsa support, so I could enable a52 encoding
through pulseaudio.
Thanks, greetings and good luck,
Frank
Some more background:
Initially this command would work:
- speaker-test -c2 -t wav -w /usr/share/sounds/alsa/Front_Center.wav
-D hw:2,2
But this wouldn't:
- speaker-test -c2 -t wav -w /usr/share/sounds/alsa/Front_Center.wav
-D plughw:CARD=Audio,DEV=2
This was caused by only these devices reported by "aplay -L"
iec958:CARD=Audio,DEV=0
USB Audio, USB Audio
IEC958 (S/PDIF) Digital Audio Output
iec958:CARD=Audio,DEV=1
USB Audio, USB Audio #1
IEC958 (S/PDIF) Digital Audio Output
After the workaround, all 4 devices on my motherboard card are
listed:
iec958:CARD=Audio,DEV=0
USB Audio, USB Audio
IEC958 (S/PDIF) Digital Audio Output
iec958:CARD=Audio,DEV=1
USB Audio, USB Audio #1
IEC958 (S/PDIF) Digital Audio Output
iec958:CARD=Audio,DEV=2
USB Audio, USB Audio #2
IEC958 (S/PDIF) Digital Audio Output
iec958:CARD=Audio,DEV=3
USB Audio, USB Audio #3
IEC958 (S/PDIF) Digital Audio Output
Now pulseaudio can support a52 encoding of the 5.1 audiostream to my
amplifier (through TOSLINK).
<<attachment: Data2Alsa-dev.zip>>
