[PROBLEM] Cirrus wm5102 Audio Card

[jonsom]

@jonsom

I have upgraded to Moode 6.7.1 on the RPi 1B/Wolfson WM5102 but it needed an extra step in the Moode GUI to get sound output.

I followed the instructions from the driver website and after starting the appropriate scripts (e.g. ./Playback_to_Lineout.sh) and going through the  "Optionally: use fixed card number" procedure, I had to go into the Moode GUI/M/Configure/Audio/Edit MPD Config and select RPi-Cirrus from the Audio Device/Audio Output drop down. The I2S Audio Device in Audio Config is still left as "None".

Thank you Sniglar for the update, up to now I have tried the approach suggested by Kent (TheOldPresbyope), updating the configuration database. It sort of worked, in that I could see the Cirrus card listed as an I2S option. On selecting that option the Moode Audio software did generate the appropriate dtoverlay addition to /boot/config.txt, but on re-start the system crashed out leaving it at a terminal interaction session (i.e. keyboard and HDMI of Pi).

Restoring the original configuration database enabled the system to complete start-up. Then leaving I2S at none (Cirrus no longer being present) found I could select it in → Configure → Audio → Edit MPD Config. After doing this and re-starting caused the system to bring up an error box, I think reporting an error generated by MPD related to ALSA something like “no such device”.

Looking at the 'audio_output' setting the Moode Audio system generates in the /etc/mpd.conf file I could see that it was not complete enough to enable MPD to work with the Cirrus card, at least with the latest Pi O/S and Linux kernel 5.4.72.

I did a bit of investigating and found that with Pi O/S and Linux kernel version 4.19.50, MPD appeared to work the Cirrus with most of the audio_output parameters left at default (as Moode Audio appears to do), but with 5.4.72 I had to provide values for ‘device’, ‘mixer_device’ and ‘mixer_control’.

I did notice that one of the fields for entries in the 'cfg_audiodev' database entries is ‘drvoptions’ and wondered whether that might be the method providing the facility to enable setting the additional 'audio_output' parameters (may investigate that next)

Out of interest the 'audio_output' setting in /etc/mpd.conf I found worked with MPD and latest Pi O/S + Linux kernel 5.4.72 was:
          (-- are my local comments for information here and are not in the mpd.conf file)
audio_output {
            type                “alsa”
            name              “My ALSA Device”                             --  didn’t appear important
#         mixer_type      “hardware”         # optional
           device               “hw:0,0”                                         --   was 2,0 if Pi’s on board audio enabled
           mixer_device     “hw:0” – again 2 …
           mixer_control    “Speaker Digital”                             --   name found using alsamixer utility
#        mixer_index       “0”                    # optional
}

So a couple of things to try, I’ll have a go at configuring a 6.7.1 system as Sniglar suggested.
...then perhaps, just out of interest, look into potential use of ‘drvoptions’ configuration database fields...