I have one of the DIYINHK ESS9018K2M DACs with the XMOS USB board that is supposed to have revised firmware allowing bit-perfect volume control from the slider on apps.
It works fine on Volumio 1.4 via the USB board - although the slider volume does not work! Any ideas on how to configure ALSA for that would be appreciated.
I then tried to run Volumio via I2S directly on to the DAC board, completely bypassing the USB input board. I can’t get it to play - no sound cards found despite trying the Generic I2S activation. Is there something I need to change/add for the ESS DAC?
I can get other DACs to work via I2S but not this K2M.