/usr/share/alsa/ucm/SDP4430/voice is in libasound2 1.0.25-1ubuntu10.
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 SDP4430 HiFi Music
# By Liam Girdwood <lrg@slimlogic.co.uk>
SectionVerb {
EnableSequence [
cdev "hw:SDP4430"
cset "name='DL1 Mixer Voice' 1"
cset "name='Sidetone Mixer Playback' 1"
cset "name='DL1 PDM Switch' 1"
cset "name='DL1 Voice Playback Volume' 90,90"
cset "name='SDT DL Volume' 120"
]
DisableSequence [
cdev "hw:SDP4430"
cset "name='DL1 Mixer Voice' 0"
cset "name='Sidetone Mixer Playback' 0"
cset "name='DL1 PDM Switch' 0"
cset "name='DL1 Voice Playback Volume' 0,0"
cset "name='SDT DL Volume' 0"
]
# Optional TQ and ALSA PCMs
Value {
TQ "Voice"
PlaybackPCM "hw:0,2"
}
}
SectionDevice."Headset".0 {
Comment "SDP4430 3.5mm Headset"
EnableSequence [
cdev "hw:SDP4430"
cset "name='HS Left Playback' 1"
cset "name='HS Right Playback' 1"
cset "name='Headset Playback Volume' 13"
]
DisableSequence [
cdev "hw:SDP4430"
cset "name='HS Right Playback' 0"
cset "name='HS Left Playback' 0"
cset "name='Headset Playback Volume' 0"
]
}
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