FM / nau8824

/usr/share/alsa/ucm2/codecs/nau8824

Name	Size	Mode	Actions
EnableSeq.conf	515	0644	edit dl rm
HeadPhones.conf	304	0644	edit dl rm
HeadsetMic.conf	544	0644	edit dl rm
InternalMic.conf	496	0644	edit dl rm
MonoSpeaker.conf	512	0644	edit dl rm
Speaker.conf	440	0644	edit dl rm

Edit: /usr/share/alsa/ucm2/codecs/nau8824/InternalMic.conf (496B)

SectionDevice."Mic" { Comment "Internal Microphone" Value { CapturePriority 200 CapturePCM "hw:${CardId}" } ConflictingDevice [ "Headset" ] EnableSequence [ cset "name='ADC CH0 Select' 0" cset "name='ADC CH1 Select' 0" cset "name='Int Mic Switch' on" cset "name='Right ADC MIC Switch' on" cset "name='Left ADC MIC Switch' on" ] DisableSequence [ cset "name='Int Mic Switch' off" cset "name='Right ADC MIC Switch' off" cset "name='Left ADC MIC Switch' off" ] }