The PIFI DAC+ board is mounted on a RPi 3, but when trying to configure the audio output device in LibreELEC, I cannot see an option to select the I2S DAC board.
This board can be configured just like the HiFiBerry DAC+.
First mount the
/flash as writable:
mount -o remount,rw /flash
Then edit the
/flash/config.txt file and add the following lines:
Reboot and you should now see a new audio output device listed in LibreELEC.