Thanks!!   Thanks for the overview.   ES8388 Codec Driver Something to add to my previous comment here (2 comments up).   I've noticed that, with the edge kernel, ALSA calls the ES8388 the 8328 instead. I've also seen the 8328 referenced in the devicetree .dtb file (via a hex viewer).   I happened across where it appears to be, in two repositories: https://github.com/armbian/linux-rockchip/tree/rk-6.1-rkr5.1/sound/soc/codecs https://github.com/t