I installed the Digi+ Standard Version on my OpenElec Raspberry Pi 2 as you described here: https://goo.gl/x3mtLs
All works fine, I activated "ALSA: Default (snd_rpi_hifiberry_digi S/PDIF" in the audio-settings.
But the last step in your instructions -- to adapt the mixer-settings -- doesn't work. Here is my terminal output:
- OpenELEC:~ # amixer -c 0 set digital 80%
- amixer: Unable to find simple control 'digital',0
Does anyone can help me?
Thanks a lot.