Bill, thanks for the reply. I am also able to open both arecord and aplay at same time, but in my software if I try to access the card in playback mode, I am unable to open it again in capture mode. Was hoping it was going to be straightforward, but maybe there is a catch when trying to open the device using specific streams (playback, capture). I will be passing the buffers collected from the capture stream straight to a socket buffer to transfer across network, and vice versa for playback, so having control over them is needed...... i think. I was able to find the " _snd_pcm_asym_open(...) function as aposed to the regular snd_pcm_open(...), but doesn't look like I can directly use it.
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