/usr/share/alsa/ucm/PandaBoard/hifiLP is in libasound2-data 1.0.28-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46  | # Use case Configuration for TI PandaBoard HiFi Music
# By Liam Girdwood <lrg@slimlogic.co.uk>
SectionVerb {
  	EnableSequence [
                cdev "hw:PandaBoard"
		cset "name='DL1 Mixer Multimedia' 1"
		cset "name='Sidetone Mixer Playback' 1"
                cset "name='DL1 PDM Switch' 1"
		cset "name='DL1 Media Playback Volume' 90,90"
                cset "name='SDT DL Volume' 120"
	]
	DisableSequence [
                cdev "hw:PandaBoard"
		cset "name='DL1 Mixer Multimedia' 0"
		cset "name='Sidetone Mixer Playback' 0"
                cset "name='DL1 PDM Switch' 0"
		cset "name='DL1 Media Playback Volume' 0,0"
                cset "name='SDT DL Volume' 0"
	]
	# Optional TQ and ALSA PCMs
	Value {
		TQ "Music"
		PlaybackPCM "hw:0,6"
	}
}
SectionDevice."Headset".0 {
	Comment "PandaBoard 3.5mm Headset"
	
	EnableSequence [
                cdev "hw:PandaBoard"
                cset "name='Headset Left Playback' 1"
                cset "name='Headset Right Playback' 1"
                cset "name='Headset Playback Volume' 13"
	]
	DisableSequence [
                cdev "hw:PandaBoard"
		cset "name='Headset Right Playback' 0"
		cset "name='Headset Left Playback' 0"
                cset "name='Headset Playback Volume' 0"
	]
}
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