[alsa-devel] Query about Playback device name

Irfan Shaikh irfan.shaikh at sasken.com
Wed Mar 9 09:32:43 CET 2011


         aplay uses following device
"aplay -Dplug:mcasp3 411.2Kbps-44.1Khz-16bits-2CH-PCM.wav"
 Playing WAVE '411.2Kbps-44.1Khz-16bits-2CH-PCM.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

         I want to use same device i.e "plug:mcasp3" in my plaback application

1) Earlier i use to use default device
   //alsaParams->playback_device = strdup("plughw:0,0");

2)  Can i use following section of code to use    "plug:mcasp3"  as playback device? Will following section of code work ??????

    alsaParams->playback_device = strdup("plug:mcasp3");                 <<<<<------------------------<<<<<<<-----------------<<<<<<<


    /*Open PCM Playback device*/
    if (snd_pcm_open(&alsaParams->playback_handle,
                     alsaParams->device_mode) < 0)

Thanks and regards

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