HDMI sudo amixer -c 0 set 'TOHDMITX' 'on' sudo amixer -c 0 set 'TOHDMITX I2S SRC' 'I2S B' sudo amixer -c 0 set 'TDMOUT_B SRC SEL' 'IN 0' sudo amixer -c 0 set 'FRDDR_A SRC 2 EN' 'on' sudo amixer -c 0 set 'FRDDR_A SINK 1 SEL' 'OUT 0' sudo amixer -c 0 set 'FRDDR_A SINK 2 SEL' 'OUT 1' sudo amixer -c 0 set 'FRDDR_A SINK 3 SEL' 'OUT 2' sudo amixer -c 0 set 'ACODEC' '85%' # not needed for the C4 sudo alsactl store   ANALOG sudo amixer -c 0 set 'TOACODEC OUT EN' 'on' sudo amixer -c 0 set '