[linux-audio-dev] Two / Three HDSPM Cards?

Howdy, I am currently trying to get two HDSPM cards working with ALSA and JACK. I can use each card individually from each other using -Dhw:0 or -Dhw:1. However I need to get both cards to look like one card for a program that we are developing in house. From what I have read I need either a .asoundrc or a /etc/alsa.conf file. For the time being I have chosen to work with .asoundrc. Here is the problem. I build the .asoundrc file according to the help page in the ALSA documentation, however when I execute any program that calls that virtual card, I get the following error. (This output is from the PCM test program in Alsa-Lib) opteron:/usr/src/alsa-lib-1.0.9/test # ./pcm -Dplug:hdspmbig -c112 Playback device is plug:hdspmbig Stream parameters are 44100Hz, S16_LE, 112 channels Sine wave rate is 440.0000Hz Using transfer method: write pcm: pcm_multi.c:811: snd_pcm_multi_open: Assertion `!slave_map[sidxs[i]][schannels[i]]' failed. Aborted If I reduce the number of channels contained in the virtual card named hdspm_112 to 64 channels, the test will work fine. I have a suspicion that the problem lies in the fact that the virtual card holds more channels than are physically available to the first sound card (hw:0). I am sure that there is something painfully obvious that I am missing but I haven't been able to locate it in the last four days. I am including my .asoundrc file for reference. Any help would me much appreciated. Thanks, Matthew Simmons --------------begin .asoundrc ---------------------- pcm_slave.hdspm_s { pcm hdspm_0 } pcm.hdspm_1 { type hw card 1 } ctl.hdspm_1 { type hw card 1 } pcm.hdspm_0 { type hw card 0 } ctl.hdspm_0 { type hw card 0 } ctl.hdspm_112 { type hw card 0 } pcm.hdspm_112 { type multi; slaves.a.pcm hdspm_0; slaves.a.channels 56; slaves.b.pcm hdspm_1; slaves.b.channels 56; 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 a; bindings.8.channel 8; bindings.9.slave a; bindings.9.channel 9; bindings.10.slave a; bindings.10.channel 10; bindings.11.slave a; bindings.11.channel 11; bindings.12.slave a; bindings.12.channel 12; bindings.13.slave a; bindings.13.channel 13; bindings.14.slave a; bindings.14.channel 14; bindings.15.slave a; bindings.15.channel 15; bindings.16.slave a; bindings.16.channel 16; bindings.17.slave a; bindings.17.channel 17; bindings.18.slave a; bindings.18.channel 18; bindings.19.slave a; bindings.19.channel 19; bindings.20.slave a; bindings.20.channel 20; bindings.21.slave a; bindings.21.channel 21; bindings.22.slave a; bindings.22.channel 22; bindings.23.slave a; bindings.23.channel 23; bindings.24.slave a; bindings.24.channel 24; bindings.25.slave a; bindings.25.channel 25; bindings.26.slave a; bindings.26.channel 26; bindings.27.slave a; bindings.27.channel 27; bindings.28.slave a; bindings.28.channel 28; bindings.29.slave a; bindings.29.channel 29; bindings.30.slave a; bindings.30.channel 30; bindings.31.slave a; bindings.31.channel 31; bindings.32.slave a; bindings.32.channel 32; bindings.33.slave a; bindings.33.channel 33; bindings.34.slave a; bindings.34.channel 34; bindings.35.slave a; bindings.35.channel 35; bindings.36.slave a; bindings.36.channel 36; bindings.37.slave a; bindings.37.channel 37; bindings.38.slave a; bindings.38.channel 38; bindings.39.slave a; bindings.39.channel 39; bindings.40.slave a; bindings.40.channel 40; bindings.41.slave a; bindings.41.channel 41; bindings.42.slave a; bindings.42.channel 42; bindings.43.slave a; bindings.43.channel 43; bindings.44.slave a; bindings.44.channel 44; bindings.45.slave a; bindings.45.channel 45; bindings.46.slave a; bindings.46.channel 46; bindings.47.slave a; bindings.47.channel 47; bindings.48.slave a; bindings.48.channel 48; bindings.49.slave a; bindings.49.channel 49; bindings.50.slave a; bindings.50.channel 50; bindings.51.slave a; bindings.51.channel 51; bindings.52.slave a; bindings.52.channel 52; bindings.53.slave a; bindings.53.channel 53; bindings.54.slave a; bindings.54.channel 54; bindings.55.slave a; bindings.55.channel 55; # Use hdspm_1 bindings.56.slave b; bindings.56.channel 0; bindings.57.slave b; bindings.57.channel 1; bindings.58.slave b; bindings.58.channel 2; bindings.59.slave b; bindings.59.channel 3; bindings.60.slave b; bindings.60.channel 4; bindings.61.slave b; bindings.61.channel 5; bindings.62.slave b; bindings.62.channel 6; bindings.63.slave b; bindings.63.channel 7; bindings.64.slave b; bindings.64.channel 8; bindings.65.slave b; bindings.65.channel 9; bindings.66.slave b; bindings.66.channel 10; bindings.67.slave b; bindings.67.channel 11; bindings.68.slave b; bindings.68.channel 12; bindings.69.slave b; bindings.69.channel 13; bindings.70.slave b; bindings.70.channel 14; bindings.71.slave b; bindings.71.channel 15; bindings.72.slave b; bindings.72.channel 16; bindings.73.slave b; bindings.73.channel 17; bindings.74.slave b; bindings.74.channel 18; bindings.75.slave b; bindings.75.channel 19; bindings.76.slave b; bindings.76.channel 20; bindings.77.slave b; bindings.77.channel 21; bindings.78.slave b; bindings.78.channel 22; bindings.79.slave b; bindings.79.channel 23; bindings.80.slave b; bindings.80.channel 24; bindings.81.slave b; bindings.81.channel 25; bindings.82.slave b; bindings.82.channel 26; bindings.83.slave b; bindings.83.channel 27; bindings.84.slave b; bindings.84.channel 28; bindings.85.slave b; bindings.85.channel 29; bindings.86.slave b; bindings.86.channel 30; bindings.87.slave b; bindings.87.channel 31; bindings.88.slave b; bindings.88.channel 32; bindings.89.slave b; bindings.89.channel 33; bindings.90.slave b; bindings.90.channel 34; bindings.91.slave b; bindings.91.channel 35; bindings.92.slave b; bindings.92.channel 36; bindings.93.slave b; bindings.93.channel 37; bindings.94.slave b; bindings.94.channel 38; bindings.95.slave b; bindings.95.channel 39; bindings.96.slave b; bindings.96.channel 40; bindings.97.slave b; bindings.97.channel 41; bindings.98.slave b; bindings.98.channel 42; bindings.99.slave b; bindings.99.channel 43; bindings.100.slave b; bindings.100.channel 44; bindings.101.slave b; bindings.101.channel 45; bindings.102.slave b; bindings.102.channel 46; bindings.103.slave b; bindings.103.channel 47; bindings.104.slave b; bindings.104.channel 48; bindings.105.slave b; bindings.105.channel 49; bindings.106.slave b; bindings.106.channel 50; bindings.107.slave b; bindings.107.channel 51; bindings.108.slave b; bindings.108.channel 52; bindings.109.slave b; bindings.109.channel 53; bindings.110.slave b; bindings.110.channel 54; bindings.111.slave b; bindings.111.channel 55; bindings.112.slave b; bindings.112.channel 56; } pcm.hdspmbig { type route slave.pcm "hdspm_112" 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.6.6 1 ttable.7.7 1 ttable.8.8 1 ttable.9.9 1 ttable.10.10 1 ttable.11.11 1 ttable.12.12 1 ttable.13.13 1 ttable.14.14 1 ttable.15.15 1 ttable.16.16 1 ttable.17.17 1 ttable.18.18 1 ttable.19.19 1 ttable.20.20 1 ttable.21.21 1 ttable.22.22 1 ttable.23.23 1 ttable.24.24 1 ttable.25.25 1 ttable.26.26 1 ttable.27.27 1 ttable.28.28 1 ttable.29.29 1 ttable.30.30 1 ttable.31.31 1 ttable.32.32 1 ttable.33.33 1 ttable.34.34 1 ttable.35.35 1 ttable.36.36 1 ttable.37.37 1 ttable.38.38 1 ttable.39.39 1 ttable.40.40 1 ttable.41.41 1 ttable.42.42 1 ttable.43.43 1 ttable.44.44 1 ttable.45.45 1 ttable.46.46 1 ttable.47.47 1 ttable.48.48 1 ttable.49.49 1 ttable.50.50 1 ttable.51.51 1 ttable.52.52 1 ttable.53.53 1 ttable.54.54 1 ttable.55.55 1 ttable.56.56 1 ttable.57.57 1 ttable.58.58 1 ttable.59.59 1 ttable.60.60 1 ttable.61.62 1 ttable.63.63 1 ttable.64.64 1 ttable.65.65 1 ttable.66.66 1 ttable.67.67 1 ttable.68.68 1 ttable.69.69 1 ttable.70.70 1 ttable.71.71 1 ttable.72.72 1 ttable.73.73 1 ttable.74.74 1 ttable.75.75 1 ttable.76.76 1 ttable.77.77 1 ttable.78.78 1 ttable.79.79 1 ttable.80.80 1 ttable.81.81 1 ttable.82.82 1 ttable.83.83 1 ttable.84.84 1 ttable.85.85 1 ttable.86.86 1 ttable.87.87 1 ttable.88.88 1 ttable.89.89 1 ttable.90.90 1 ttable.91.91 1 ttable.92.92 1 ttable.93.93 1 ttable.94.94 1 ttable.95.95 1 ttable.96.96 1 ttable.97.97 1 ttable.98.98 1 ttable.99.99 1 ttable.100.100 1 ttable.101.101 1 ttable.102.102 1 ttable.103.103 1 ttable.104.104 1 ttable.105.105 1 ttable.106.106 1 ttable.107.107 1 ttable.108.108 1 ttable.109.109 1 ttable.110.110 1 ttable.111.111 1 } ctl.hdspmbig { type hw; card 0; }