music@musik-server:/opt/music_server/soundcard_cfg/multicard$ cat multi.cfg
######################################################
## MULTICARD CREATED BY MUSICSERVER4LOX

pcm.card_0 {
    type dmix
    ipc_key 2047
    slave {
        pcm "hw:0"
        rate 44100
        period_time 0
        period_size 1024
        buffer_size 8192
        channels 8th
    }
    bindings {
        0 0
        1 1
        2 2
        3 3
        4 4
        5 5
        6 6
        7 7
    }
}

pcm.card_1 {
    type dmix
    ipc_key 2048
    slave {
        pcm "hw:1"
        rate 44100
        period_time 0
        period_size 1024
        buffer_size 8192
        channels 8th
    }
    bindings {
        0 0
        1 1
        2 2
        3 3
        4 4
        5 5
        6 6
        7 7
    }
}

pcm.multi {
        type multi
        slaves.a {
                pcm "card_0"
                channels 8th
        }

        slaves.b {
                pcm "card_1"
                channels 8th
        }

        bindings.0.slave a
        bindings.0.channel 0
        bindings.1.slave a
        bindings.1.channel 1
        bindings.2.slave a
        bindings.2.channel 2
        bindings.3.slave a
        bindings.3.channel 3
        bindings.4.slave a
        bindings.4.channel 4
        bindings.5.slave a
        bindings.5.channel 5
        bindings.6.slave a
        bindings.6.channel 6
        bindings.7.slave a
        bindings.7.channel 7
        bindings.8.slave b
        bindings.8.channel 0
        bindings.9.slave b
        bindings.9.channel 1
        bindings.10.slave b
        bindings.10.channel 2
        bindings.11.slave b
        bindings.11.channel 3
        bindings.12.slave b
        bindings.12.channel 4
        bindings.13.slave b
        bindings.13.channel 5
        bindings.14.slave b
        bindings.14.channel 6
        bindings.15.slave b
        bindings.15.channel 7
}