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[SDW] Bus clash on rt722
Bus clash will happen in the following steps
- Open the headset capture device
arecord -Dhw:0,1 -fDAT /dev/null & - Open the SoundWire DMIC deive
arecord -Dhw:0,4 -fDAT /dev/null & - Run playback on headphone
aplay -Dhw:0,0 -fDAT /dev/zero & - Run playback on speaker
aplay -Dhw:0,2 -fDAT /dev/zero & - Turn off headphone playback
Bus clash will happen after step 5. If not, switch the playback devices repeatedly. I.e. Open the speaker playback than close the headphone playback. Then open the headphone playback and close the speaker playback.