This file is indexed.

/usr/share/alsa/ucm/Manta-I2S/HiFi is in libasound2-data 1.1.3-5.

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

The actual contents of the file can be viewed below.

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# By David Henningsson <david.henningsson@canonical.com>
# Translated from mixer_paths.xml in Manta repository

SectionVerb {

	EnableSequence [
		cdev "hw:MantaI2S"

		# A lot of defaults
		cset "name='DAC2 Switch' 0"
		cset "name='AIF1DRC1 Mode' Default"
		cset "name='AIF1DAC1 DRC Switch' 0"
		cset "name='Speaker Switch' 0"
		cset "name='SPKR DAC1 Switch' 0"
		cset "name='SPKL DAC1 Switch' 0"
		cset "name='Speaker Mixer Volume' 0"

		cset "name='Headphone Switch' 0"
		cset "name='Left Output Mixer DAC Switch' 0"
		cset "name='Right Output Mixer DAC Switch' 0"

		cset "name='MIXINL IN1L Switch' 0"
		cset "name='IN1L Switch' 0"
		cset "name='IN1L PGA IN1LP Switch' 0"
		cset "name='IN1L PGA IN1LN Switch' 1"

		cset "name='MIXINL IN2L Switch' 0"
		cset "name='IN2L Switch' 0"
		cset "name='IN2L PGA IN2LP Switch' 0"
		cset "name='IN2L PGA IN2LN Switch' 1"

		cset "name='MIXINR IN1R Switch' 0"
		cset "name='IN1R Switch' 0"
		cset "name='IN1R PGA IN1RP Switch' 0"
		cset "name='IN1R PGA IN1RN Switch' 1"

		cset "name='MIXINR IN2R Switch' 0"
		cset "name='IN2R Switch' 0"
		cset "name='IN2R PGA IN2RP Switch' 0"
		cset "name='IN2R PGA IN2RN Switch' 1"

		cset "name='AIF2DACL Mux' AIF3"
		cset "name='AIF2DACR Mux' AIF3"
		cset "name='AIF2DAC Mux' AIF3DACDAT"
		cset "name='AIF3ADC Mux' AIF2ADCDAT"

		cset "name='AIF1ADC1L Mixer AIF2 Switch' 0"
		cset "name='AIF1ADC1R Mixer AIF2 Switch' 0"
		cset "name='AIF1ADC2L Mixer AIF2 Switch' 0"
		cset "name='AIF1ADC2R Mixer AIF2 Switch' 0"

		# Enable dac1
		cset "name='DAC1R Mixer AIF1.1 Switch' 1"
		cset "name='DAC1L Mixer AIF1.1 Switch' 1"
		cset "name='DAC1 Switch' 1"

		# Enable adc to aif1adc
		cset "name='AIF1ADC1L Mixer ADC/DMIC Switch' 1"
		cset "name='AIF1ADC1R Mixer ADC/DMIC Switch' 1"
	]

	DisableSequence [
		cdev "hw:MantaI2S"

		# Disable dac1
		cset "name='DAC1R Mixer AIF1.1 Switch' 0"
		cset "name='DAC1L Mixer AIF1.1 Switch' 0"
		cset "name='DAC1 Switch' 0"

		# Disable adc to aif1adc
		cset "name='AIF1ADC1L Mixer ADC/DMIC Switch' 0"
		cset "name='AIF1ADC1R Mixer ADC/DMIC Switch' 0"
	]

	# ALSA PCM
	Value {

		TQ "HiFi"

		# ALSA PCM device for HiFi
		PlaybackPCM "hw:MantaI2S,0"
		CapturePCM "hw:MantaI2S,0"
	}

}

SectionDevice."Speaker" {
	Comment "Main speaker"

	EnableSequence [
		cdev "hw:MantaI2S"

		# Enable speaker
		cset "name='Speaker Switch' 1"
		cset "name='SPKR DAC1 Switch' 1"
		cset "name='SPKL DAC1 Switch' 1"
		cset "name='Speaker Mixer Volume' 3"
		cset "name='Speaker Boost Volume' 5"
		cset "name='AIF1DRC1 Mode' 'Speakers Media'"
		cset "name='AIF1DAC1 DRC Switch' 1"

		# Set EQ for speaker
		cset "name='AIF1DAC1 EQ Switch' 1"
		cset "name='AIF1DAC1 EQ1 Volume' 3"
		cset "name='AIF1DAC1 EQ2 Volume' 8"
		cset "name='AIF1DAC1 EQ3 Volume' 16"
		cset "name='AIF1DAC1 EQ4 Volume' 10"
		cset "name='AIF1DAC1 EQ5 Volume' 11"

		# Set Volume for speaker
		cset "name='Speaker Volume' 61,62"
	]

	DisableSequence [
		cdev "hw:MantaI2S"

		cset "name='Speaker Switch' 0"
		cset "name='AIF1DAC1 EQ Switch' 0"
	]

	Value {
		PlaybackChannels "2"
		PlaybackPriority "150"
	}
}

SectionDevice."Headphones" {
	Comment "Headphone jack"

	EnableSequence [
		cdev "hw:MantaI2S"

		cset "name='Headphone Switch' 1"
		cset "name='AIF1DAC1 EQ Switch' 0"
		cset "name='Headphone Volume' 55,55"
		cset "name='Left Headphone Mux' 'DAC'"
		cset "name='Right Headphone Mux' 'DAC'"
	]

	DisableSequence [
		cdev "hw:MantaI2S"

		cset "name='Headphone Switch' 0"
	]

	Value {
		PlaybackChannels "2"
	}
}

SectionDevice."Microphone" {
	Comment "Internal microphone"

	EnableSequence [
		cdev "hw:MantaI2S"

		# Main mic
		cset "name='MIXINR IN2R Switch' 1"
		cset "name='MIXINR IN2R Volume' 1"
		cset "name='IN2R Switch' 1"
		cset "name='AIF1ADCL Source' Right"

		# Second mic right
		cset "name='MIXINL IN2L Switch' 1"
		cset "name='MIXINL IN2L Volume' 1"
		cset "name='IN2L Switch' 1"
		cset "name='AIF1ADCR Source' Left"

		# Volume
		cset "name='IN2R Volume' 16"
		cset "name='IN2L Volume' 16"
		cset "name='AIF1ADC1 HPF Switch' 1"
		cset "name='AIF1ADC1 HPF Mode' HiFi"
	]

	DisableSequence [
		cdev "hw:MantaI2S"

	]

	Value {
		CaptureChannels "2"
	}
}

SectionDevice."HeadsetMic" {
	Comment "Headset microphone"

	EnableSequence [
		cdev "hw:MantaI2S"

		# Headset Mic
		# Is this really correct? It looks a lot like main mic
		cset "name='MIXINR IN2R Switch' 1"
		cset "name='MIXINR IN2R Volume' 1"
		cset "name='IN2R Switch' 1"
		cset "name='AIF1ADCL Source' Right"

		cset "name='IN2R Volume' 16"
		cset "name='AIF1ADC1 HPF Mode' HiFi"
	]

	DisableSequence [
		cdev "hw:MantaI2S"

	]

	Value {
		CaptureChannels "1"
	}
}