I like to to do: Toslink IN - apply EQ - Toslink OUT
With the dacdsp-default.xml Toslink IN and OUT works, however the EQ does not. With dacdsp-v12-1.xml the EQ works and playback from RPI works, but Toslink IN does not.
I do not need to play sound from the RPI. Is there a way to force the dacdsp-v12-1.xml profile to always use Toslink IN?