FM / cards

/usr/share/alsa/cards

Name	Size	Mode	Actions
AACI.conf	664	0644	edit dl rm
aliases.conf	1536	0644	edit dl rm
ATIIXP-MODEM.conf	303	0644	edit dl rm
ATIIXP-SPDMA.conf	2241	0644	edit dl rm
ATIIXP.conf	2487	0644	edit dl rm
AU8810.conf	438	0644	edit dl rm
AU8820.conf	159	0644	edit dl rm
AU8830.conf	521	0644	edit dl rm
Audigy.conf	4101	0644	edit dl rm
Audigy2.conf	5560	0644	edit dl rm
Aureon51.conf	2373	0644	edit dl rm
Aureon71.conf	2504	0644	edit dl rm
CA0106.conf	3853	0644	edit dl rm
CMI8338-SWIEC.conf	1788	0644	edit dl rm
CMI8338.conf	1915	0644	edit dl rm
CMI8738-MC6.conf	2134	0644	edit dl rm
CMI8738-MC8.conf	2985	0644	edit dl rm
CMI8788.conf	1643	0644	edit dl rm
CS46xx.conf	2949	0644	edit dl rm
Echo_Echo3G.conf	4409	0644	edit dl rm
EMU10K1.conf	4423	0644	edit dl rm
EMU10K1X.conf	2758	0644	edit dl rm
ENS1370.conf	1369	0644	edit dl rm
ENS1371.conf	1727	0644	edit dl rm
ES1968.conf	152	0644	edit dl rm
FireWave.conf	705	0644	edit dl rm
FM801.conf	1229	0644	edit dl rm
FWSpeakers.conf	335	0644	edit dl rm
GUS.conf	217	0644	edit dl rm
HDA-Intel.conf	8064	0644	edit dl rm
HdmiLpeAudio.conf	1487	0644	edit dl rm
ICE1712.conf	2413	0644	edit dl rm
ICE1724.conf	2882	0644	edit dl rm
ICH-MODEM.conf	193	0644	edit dl rm
ICH.conf	3058	0644	edit dl rm
ICH4.conf	2890	0644	edit dl rm
Loopback.conf	1273	0644	edit dl rm
Maestro3.conf	558	0644	edit dl rm
NFORCE.conf	4100	0644	edit dl rm
PC-Speaker.conf	657	0644	edit dl rm
pistachio-card.conf	1633	0644	edit dl rm
PMac.conf	487	0644	edit dl rm
PMacToonie.conf	706	0644	edit dl rm
PS3.conf	1098	0644	edit dl rm
RME9636.conf	781	0644	edit dl rm
RME9652.conf	781	0644	edit dl rm
SB-XFi.conf	1503	0644	edit dl rm
SI7018.conf	2274	0644	edit dl rm
TRID4DWAVENX.conf	1794	0644	edit dl rm
USB-Audio.conf	9906	0644	edit dl rm
vc4-hdmi.conf	1405	0644	edit dl rm
VIA686A.conf	1201	0644	edit dl rm
VIA8233.conf	2760	0644	edit dl rm
VIA8233A.conf	2816	0644	edit dl rm
VIA8237.conf	2590	0644	edit dl rm
VX222.conf	831	0644	edit dl rm
VXPocket.conf	840	0644	edit dl rm
VXPocket440.conf	1483	0644	edit dl rm
YMF744.conf	1359	0644	edit dl rm

Edit: /usr/share/alsa/cards/Loopback.conf (1273B)

#
# Configuration for the virtual loopback driver (snd-aloop)
#

<confdir:pcm/front.conf>

Loopback.pcm.front.!0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type softvol
	slave.pcm {
		type hw
		card $CARD
	}
	control {
		name "PCM Playback Volume"
		card $CARD
	}
}

# default with dmix+softvol & dsnoop
Loopback.pcm.!default {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type asym
	playback.pcm {
		type plug
		slave.pcm {
			type softvol
			slave.pcm {
				@func concat
				strings [ "dmix:" $CARD ]
			}
			control {
				name "PCM Playback Volume"
				card $CARD
			}
		}
	}
	capture.pcm {
		type plug
		slave.pcm {
			type softvol
			slave.pcm {
				@func concat
				strings [ "dsnoop:" $CARD ]
			}
			control {
				name "Digital Capture Volume"
				card $CARD
			}
			min_dB -30.0
			max_dB 30.0
			resolution 121
		}
		# to avoid possible phase inversions with digital mics
		route_policy copy
	}
	hint.device 0
}

<confdir:pcm/surround21.conf>
<confdir:pcm/surround40.conf>
<confdir:pcm/surround41.conf>
<confdir:pcm/surround50.conf>
<confdir:pcm/surround51.conf>
<confdir:pcm/surround71.conf>

Loopback.pcm.surround40.0 cards.Loopback.pcm.front.0
Loopback.pcm.surround51.0 cards.Loopback.pcm.front.0
Loopback.pcm.surround71.0 cards.Loopback.pcm.front.0

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