Something

VIA8233.pcm.surround51.0 {
        @args [ CARD ]
        @args.CARD {
                type string
        }
        
	type softvol
	slave.pcm {
		type route
		ttable.0.0 1
		ttable.1.1 1
		ttable.2.4 1
		ttable.3.5 1
		ttable.4.2 1
		ttable.5.3 1
        slave.pcm {
        	type hooks
        	slave.pcm {
                	type hw
                	card $CARD
                	device 1
                	channels 6
        	}
        	hooks.0 {
                	type ctl_elems
                	hook_args [
                        	{
                                	name "Channel Mode"
                                	device 0
                                	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"
                                	device 0
                                	preserve true
                                	value off
                                	lock true
                                	optional true
                        	}
                        	{
                                	name "Center/LFE Down Mix"
                                	device 0
                                	preserve true
                                	value off
                                	lock true
                                	optional true
                        	}
                	]
        		}
		}
	}
}