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File: //usr/share/alsa/ucm2/codecs/rt5672/MonoSpeaker.conf
SectionDevice."Speaker2" {
	Comment "Mono Speaker"

	ConflictingDevice [
		"Speaker1"
		"Headphones"
	]

	EnableSequence [
		cset "name='Stereo DAC MIXR DAC R1 Switch' off"
		cset "name='Stereo DAC MIXL DAC R1 Switch' on"
		cset "name='Ext Spk Switch' on"
	]

	DisableSequence [
		cset "name='Ext Spk Switch' off"
		cset "name='Stereo DAC MIXL DAC R1 Switch' off"
		cset "name='Stereo DAC MIXR DAC R1 Switch' on"
	]

	Value {
		PlaybackPriority 100
		PlaybackPCM "hw:${CardId}"
		# The speaker ampl. path on the 5672 has no speaker vol control
		# Use the digital DAC1 master control as MixerElem
		PlaybackMixerElem "DAC1"
		PlaybackVolume "DAC1 Playback Volume"
		PlaybackSwitch "DAC1 Playback Switch"
	}
}