Re: [Alsa-user] Joining subdevices possible?

[Chris B. <ch...@po...>]

I tried the addition to my .asoundrc shown below, however got the following
error:

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


Does anyone know what this means and if there is any solution?

Thanks,

Chris


Added following to .asoundrc:
####

pcm.multi {
                type multi;
                slaves.a.pcm "hw:0,0";
                slaves.a.channels 6;
                slaves.b.pcm "hw:0,1";
                slaves.b.channels 2;

                #analog section

                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;

                #digital section

                bindings.6.slave b;
                bindings.6.channel 0;
                bindings.7.slave b;
                bindings.7.channel 1;
        }

ctl.multi {
                type hw;
                card 0;
        }

pcm.ttable {
                type route;
                slave.pcm "multi";
                ttable.0.0 1;
                ttable.1.1 1;
                ttable.2.2 1;
                ttable.3.3 1;
                ttable.4.4 1;
                ttable.5.5 1;
                ttable.6.6 1;
                ttable.7.7 1;
        }
        ctl.ttable {
                type hw;
                card 0;
        }



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