✏ 编辑: ICH4.conf

#
# Configuration for the Intel ICH4/ICH5/ICH6 chips
#

<confdir:pcm/front.conf>

ICH4.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
ICH4.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 {
			@func concat
			strings [ "dsnoop:" $CARD ]
		}
	}
}

<confdir:pcm/surround40.conf>

ICH4.pcm.surround40.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type softvol
	slave.pcm {
		type hooks
		slave.pcm {
			type hw
			card $CARD
			channels 4
		}
		hooks.0 {
			type ctl_elems
			hook_args [
			{
				name "Channel Mode"
				preserve true
				value "4ch"
				lock true
				optional true
			}
			# for old drivers
			{
				name "Line-In As Surround"
				preserve true
				value true
				optional true
			}
			{
				name "Surround Down Mix"
				preserve true
				value off
				lock true
				optional true
			}
			]
		}
	}
	control {
		name "PCM Playback Volume"
		card $CARD
	}
}

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

ICH4.pcm.surround51.0 {
	@args [ CARD ]
	@args.CARD {
		type string
	}
	type softvol
	slave.pcm {
		type hooks
		slave.pcm {
			type hw
			card $CARD
			channels 6
		}
		hooks.0 {
			type ctl_elems
			hook_args [
			{
				name "Channel Mode"
				preserve true
				value "6ch"
				lock true
				optional true
			}
			# for old drivers
			{
				name "Line-In As Surround"
				preserve true
				value true
				optional true
			}
			{
				name "Mic As Center/LFE"
				preserve true
				value true
				optional true
			}
			{
				name "Surround Down Mix"
				preserve true
				value off
				lock true
				optional true
			}
			{
				name "Center/LFE Down Mix"
				preserve true
				value off
				lock true
				optional true
			}
			]
		}
	}
	control {
		name "PCM Playback Volume"
		card $CARD
	}
}

<confdir:pcm/iec958.conf>

ICH4.pcm.iec958.0 {
	@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
		device 4
	}
	hooks.0 {
		type ctl_elems
		hook_args [
			{
				name "IEC958 Playback AC97-SPSA"
				lock true
				preserve true
				value 3
				optional true
			}
			{
				name "IEC958 Playback Default"
				lock true
				preserve true
				value [ $AES0 $AES1 $AES2 $AES3 ]
			}
			{
				name "IEC958 Playback Switch"
				lock true
				preserve true
				value true
			}
		]
	}
}

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