[PlanetCCRMA] jackd and two Delta1010 cards

[Bob Wilkinson]

Hopefully someone can help me on this.  I have installed Planet CCRMA from an FC4 installation.  I am using two Delta1010 sound devices, and am trying to get them to act as one big device.

I have searched the web, and found an .asoundrc file (I actually wrote it to /etc/asound.conf) to create the "virtual" card (binding the two cards together).  My asound.conf file looks like this:

pcm.multi_capture {
        type multi
        slaves.a.pcm hw:0
        slaves.a.channels 12
        slaves.b.pcm hw:1
        slaves.b.channels 12

# First 8 channels of first soundcard (capture)
        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

# First 8 channels of second soundcard (capture)
        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

# S/PDIF section. Uncomment bindings if required.

# S/PDIF first soundcard (capture)
        #bindings.16.slave a
        #bindings.16.channel 8
        #bindings.17.slave a
        #bindings.17.channel 9

# S/PDIF second soundcard (capture)
        #bindings.18.slave b
        #bindings.18.channel 8
        #bindings.19.slave b
        #bindings.19.channel 9
}

ctl.multi_capture {
        type hw
        card 0
}

pcm.multi_playback {
        type multi
        slaves.a.pcm hw:0
        slaves.a.channels 10
        slaves.b.pcm hw:1
        slaves.b.channels 10

# First 8 channels of first soundcard (playback)
        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

# First 8 channels of second soundcard (playback)
        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

# S/PDIF section. Uncomment bindings if required.

# S/PDIF first soundcard (playback)
        #bindings.16.slave a
        #bindings.16.channel 8
        #bindings.17.slave a
        #bindings.17.channel 9

# S/PDIF second soundcard (playback)
        #bindings.18.slave b
        #bindings.18.channel 8
        #bindings.19.slave b
        #bindings.19.channel 9
}

ctl.multi_playback {
        type hw
        card 0
}

However, when I attempt to run JACK from a command line,

jackd -d alsa -C multi_capture -P multi_playback

 I get the error:

ALSA: mmap-based access is not possible for the capture stream of this audio interface
ALSA: cannot configure capture channel

I have tried just starting jack for multi_playback only - same error, just replaced with "playback".

Unfortunately, I'm a complete newbie, and now have less than a week before my company expects this thing to be up and running flawlessly.

Can anybody help?  What am I missing?

Thanks in advance!
Bob Wilkinson