I’m working with the Official Debian release for the CM3 and the Raxda Rock3 Compute Module IO Board, and I’m attempting to use the onboard 3.5mm aux combo jack to both play sound from and record audio input.
I’m having issues doing either, and I suspect it’s because the audio drivers weren’t loaded into the kernel.
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: rockchiphdmi [rockchip,hdmi], device 0: fe400000.i2s-i2s-hifi i2s-hifi-0 [fe400000.i2s-i2s-hifi i2s-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
arecord -l
**** List of CAPTURE Hardware Devices ****
uname -a
Linux rock-cm3 4.19.193-67-rockchip-g450948183988 #rockchip SMP Thu Jan 12 03:23:25 UTC 2023 aarch64 GNU/Linux
Is there a way for me to load the appropriate overlay files in order to get the audio functionality to work?
I found some documentation around the Rock4 having a similar issue, but it doesn’t seem like the CM3 audio issues can be solved with a full-upgrade like the Rock4.