This file is indexed.

/usr/share/alsa/ucm/msm8974-taiko-mtp-snd-card/VoiceCall is in libasound2-data 1.1.0-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# There is no mixer setup here - it is handled by PulseAudio's audio HAL module.

SectionVerb {
	EnableSequence [
		cdev "hw:msm8974taikomtp"
		cset "name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1"
	]

	DisableSequence [
		cdev "hw:msm8974taikomtp"
		cset "name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0"
	]

	Value {
		CapturePCM "hw:msm8974taikomtp,0"
		PlaybackPCM "hw:msm8974taikomtp,0"
	}
}

SectionDevice."Earpiece" {
	#Name "Earpiece"
	Comment "Earpiece speaker"

	# FIXME
	ConflictingDevice [
		"Headphones"
		"Speaker"
	]

	EnableSequence [
	]

	DisableSequence [
	]

	Value {
		PlaybackChannels "2"
	}
}

SectionDevice."Speaker" {
	#Name "Speaker"
	Comment "Main speaker"

	# FIXME
	ConflictingDevice [
		"Earpiece"
		"Headphones"
	]

	EnableSequence [
	]

	DisableSequence [
	]

	Value {
		PlaybackChannels "2"
	}
}

SectionDevice."Headphones" {
	#Name "Headphones"
	Comment "Headphones"

	# FIXME
	ConflictingDevice [
		"Earpiece"
		"Speaker"
	]

	EnableSequence [
	]

	DisableSequence [
	]

	Value {
		PlaybackChannels "2"
	}
}

SectionDevice."Headset" {
	#Name "Headset"
	Comment "Headset Microphone"

	ConflictingDevice [
		"Handset"
	]

	EnableSequence [
	]

	DisableSequence [
	]

	Value {
		CaptureChannels "1"
	}
}

SectionDevice."Handset" {
	#Name "Handset"
	Comment "Handset Microphone"

	ConflictingDevice [
		"Headset"
	]

	EnableSequence [
	]

	DisableSequence [
	]

	Value {
		CaptureChannels "1"
	}
}