Edit: /usr/share/alsa/pcm/surround21.conf (923B)
#
# Hardware output from 2.1 speakers.
# Samples must be positioned:
# chn0 - front left
# chn1 - front right
# chn2 - LFE
#
pcm.!surround21 {
@args [ CARD DEV ]
@args.CARD {
type string
default {
@func getenv
vars [
ALSA_SURROUND21_CARD
ALSA_PCM_CARD
ALSA_CARD
]
default {
@func refer
name defaults.pcm.surround21.card
}
}
}
@args.DEV {
type integer
default {
@func igetenv
vars [
ALSA_SURROUND21_DEVICE
]
default {
@func refer
name defaults.pcm.surround21.device
}
}
}
type route
slave.pcm {
@func refer
name {
@func concat
strings [
"cards."
{
@func card_inum
card $CARD
}
".pcm.surround51." $DEV ":CARD=" $CARD
]
}
}
ttable.0.FL 1
ttable.1.FR 1
ttable.2.LFE 1
hint {
description "2.1 Surround output to Front and Subwoofer speakers"
device_output $DEV
omit_noargs true
}
}