How to setup Generic I2S DAC?

Hi, I have a ‘Generic’ Digital output connected to the RPI. I’ve also selected ‘Generic’ as I2S driver in Volumio.

However I don’t get any sound. The problems seems to that, in Volumio, the only Audio Output available is ALSA. What needs to be done to select the ‘Generic’ digital output as Audio Output for ANY device that accepts I2S?

Thanks in advance.

Please reboot after selecting the generic DAC, you should then be able to select it…

Thanks, but I found the problem, I needed to select a driver first in /boot/config.txt, in my case:

dtoverlay=hifiberry-digi

I thought this wasn’t necessary since I selected ‘Generic’: I thought this would just send the data over the I2S pins, but no…