We are getting error in arecord file,says “Invalid value for card arecord: main:807: audio open error”.
From Colibri iMX6Ull datasheet:
5.14 Analogue Audio
The Colibri iMX6ULL does not feature an audio codec on the module. Therefore, the analog audio
interface pins (MIC, HEADPHONE, and LINE_IN) are left unconnected.