I've recently got a Justboom Digi Zero and installed to a Raspberry Pi Zero, and after a bit of wrestling I managed to get the soundcard detected in LibreELEC (modifying the config.txt) and could get some sound out the toslink port. However what I'm after is using this to play movies and get 5.1 surround sound on a connected amp with speakers, I've used LibreELEC on a computer no problem, but the issue with using it on a Pi is that I cannot select the relevant passthrough device needed.
In the settings menu I can set the audio output to the Justboom card and at least get 2.0 sound from it (however no sound on anything that uses DTS or AC3), but the one issue I have is the passthrough device menu is greyed out and completely unselectable which is set to the default (PI: HDMI).
What's the word on Justboom compatibility? Is it possible to override this menu?