[alsa-devel] snd_pcm_writei BLOCKED

Irfan Shaikh irfan.shaikh at sasken.com
Mon Apr 25 13:17:18 CEST 2011


          I have created two threads

1)Thread 1 :  reads audio data from USB audio class hw:1,0   (Capture device : open in BLOCKING Mode )
2)Thread2 : writes audio data to playback device hw:0,0         (Playback device : open in BLOCKING Mode )

First snd_pcm_writei() is succesfull in Thread 2
Thread2 gets stuck/blocked in second snd_pcm_writei() and does not returns.

Please  can some one please tell me Why i am facing this issue.

(Note : This happens with only with 1 specific capture device, when i connect different model i.e capture device my implementation works fine)


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