File: //usr/share/alsa/cards/HdmiLpeAudio.conf
#
# Configuration for the Intel HDMI/DP LPE audio
#
<confdir:pcm/front.conf>
HdmiLpeAudio.pcm.front.0 {
@args [ CARD ]
@args.CARD {
type string
}
type softvol
slave.pcm {
type hw
card $CARD
}
control {
name "PCM Playback Volume"
card $CARD
}
}
# uncached memory reads have a high penalty
HdmiLpeAudio.dmix.direct_memory_access false
# default with dmix+softvol
HdmiLpeAudio.pcm.default {
@args [ CARD ]
@args.CARD {
type string
}
type plug
slave.pcm {
type softvol
slave.pcm {
@func concat
strings [ "dmix:" $CARD ]
}
control {
name "PCM Playback Volume"
card $CARD
}
}
}
<confdir:pcm/surround40.conf>
<confdir:pcm/surround21.conf>
<confdir:pcm/surround41.conf>
<confdir:pcm/surround50.conf>
<confdir:pcm/surround51.conf>
<confdir:pcm/hdmi.conf>
HdmiLpeAudio.pcm.hdmi.0 {
@args [ CARD AES0 AES1 AES2 AES3 ]
@args.CARD {
type string
}
@args.AES0 {
type integer
}
@args.AES1 {
type integer
}
@args.AES2 {
type integer
}
@args.AES3 {
type integer
}
type hooks
slave.pcm {
type hw
card $CARD
}
hooks.0 {
type ctl_elems
hook_args [
{
interface PCM
name "IEC958 Playback Default"
lock true
preserve true
value [ $AES0 $AES1 $AES2 $AES3 ]
}
]
}
}