Needed: audio in/out device info

hi just to be sure are you refering to this board?

if yes as it is Linux it is easy to play and record at the same time ( notice the ‘&’:

speaker-test -D plughw:2,0 -l5 -c8 -t wav &
arecord -D plughw:2,0 -c8 -f S32_LE -r 48000 test.wav