Audio GPIO shields
I'm using the GPIO enabling Kernel from UP:
4.15.0-37-generic #40~upboard06-Ubuntu SMP Wed Nov 27 11:29:44 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I'm already using an Olmatic UPS shield successfully with my UP2, however I need to further extend the use of the GPIO with an audio shield (stereo audio-IN).
For that purpuse I'm trying to use a Respeaker-2Mic pi-Hat, it is compatible with jetson, R-pi and others, however there are no drivers compatible with this kernel and i'm wasting so much time trying to adapt or even write my own drivers.
Are there any Audio shields compatible with the UP2 by GPIO bus?