{ "adapters": [ { "name": "primary", "cardId": "", "daiId": "", "simple_mixer_ctl_volume": { "playback": [ { "name": "DACL" }, { "name": "DACR" } ], "capture": [ { "name": "DACL" }, { "name": "DACR" } ] } }, { "name": "hdmi", "cardId": "", "daiId": "" } ] }