PCM list:
hw {
	@args.0 CARD
	@args.1 DEV
	@args.2 SUBDEV
	@args.CARD {
		type string
		default {
			@func getenv
			vars {
				0 ALSA_PCM_CARD
				1 ALSA_CARD
			}
			default {
				@func refer
				name 'defaults.pcm.card'
			}
		}
	}
	@args.DEV {
		type integer
		default {
			@func igetenv
			vars {
				0 ALSA_PCM_DEVICE
			}
			default {
				@func refer
				name 'defaults.pcm.device'
			}
		}
	}
	@args.SUBDEV {
		type integer
		default {
			@func refer
			name 'defaults.pcm.subdevice'
		}
	}
	type hw
	card $CARD
	device $DEV
	subdevice $SUBDEV
}
plughw {
	@args.0 CARD
	@args.1 DEV
	@args.2 SUBDEV
	@args.CARD {
		type string
		default {
			@func getenv
			vars {
				0 ALSA_PCM_CARD
				1 ALSA_CARD
			}
			default {
				@func refer
				name 'defaults.pcm.card'
			}
		}
	}
	@args.DEV {
		type integer
		default {
			@func igetenv
			vars {
				0 ALSA_PCM_DEVICE
			}
			default {
				@func refer
				name 'defaults.pcm.device'
			}
		}
	}
	@args.SUBDEV {
		type integer
		default {
			@func refer
			name 'defaults.pcm.subdevice'
		}
	}
	type plug
	slave.pcm {
		type hw
		card $CARD
		device $DEV
		subdevice $SUBDEV
	}
}
plug {
	@args.0 SLAVE
	@args.SLAVE {
		type string
	}
	type plug
	slave.pcm $SLAVE
}
dmix {
	@args.0 SLAVE
	@args.1 FORMAT
	@args.2 RATE
	@args.SLAVE {
		type string
		default 'hw:0,0'
	}
	@args.FORMAT {
		type string
		default S16_LE
	}
	@args.RATE {
		type integer
		default 48000
	}
	type dmix
	ipc_key 5678293
	ipc_key_add_uid yes
	slave {
		pcm $SLAVE
		format $FORMAT
		rate $RATE
	}
}
dsnoop {
	@args.0 SLAVE
	@args.1 FORMAT
	@args.2 RATE
	@args.SLAVE {
		type string
		default 'hw:0,0'
	}
	@args.FORMAT {
		type string
		default S16_LE
	}
	@args.RATE {
		type integer
		default 48000
	}
	type dsnoop
	ipc_key 5778293
	ipc_key_add_uid yes
	slave {
		pcm $SLAVE
		format $FORMAT
		rate $RATE
	}
}
shm {
	@args.0 SOCKET
	@args.1 PCM
	@args.SOCKET {
		type string
	}
	@args.PCM {
		type string
	}
	type shm
	server $SOCKET
	pcm $PCM
}
tee {
	@args.0 SLAVE
	@args.1 FILE
	@args.2 FORMAT
	@args.SLAVE {
		type string
	}
	@args.FILE {
		type string
	}
	@args.FORMAT {
		type string
		default raw
	}
	type file
	slave.pcm $SLAVE
	file $FILE
	format $FORMAT
}
file {
	@args.0 FILE
	@args.1 FORMAT
	@args.FILE {
		type string
	}
	@args.FORMAT {
		type string
		default raw
	}
	type file
	slave.pcm null
	file $FILE
	format $FORMAT
}
null {
	type null
}
default {
	type plug
	slave.pcm {
		type hw
		card {
			@func getenv
			vars {
				0 ALSA_PCM_CARD
				1 ALSA_CARD
			}
			default {
				@func refer
				name 'defaults.pcm.card'
			}
		}
		device {
			@func igetenv
			vars {
				0 ALSA_PCM_DEVICE
			}
			default {
				@func refer
				name 'defaults.pcm.device'
			}
		}
		subdevice {
			@func refer
			name 'defaults.pcm.subdevice'
		}
	}
}
cards 'cards.pcm'
front 'cards.pcm.front'
rear 'cards.pcm.rear'
center_lfe 'cards.pcm.center_lfe'
side 'cards.pcm.side'
surround40 'cards.pcm.surround40'
surround41 'cards.pcm.surround41'
surround50 'cards.pcm.surround50'
surround51 'cards.pcm.surround51'
surround71 'cards.pcm.surround71'
iec958 'cards.pcm.iec958'
spdif 'cards.pcm.iec958'
modem 'cards.pcm.modem'
copy {
	type plug
	slave {
		pcm hw
	}
	route_policy copy
}