Hi,
I am new to ALSA, I am trying to write an ALSA driver for voice channels of and ADC.
I had create a sound card with a PCM instance with 2 capture sub streams. I want to copy data manually by copy call back. I had registered a copy call back.
I am trying to test my driver with arecord -c 1 -f s16_LE -t wav test.wav. In log all call backs are invoked, but copy call back is not getting invoked. Can you please let me know when will copy call back shall be invoked, is there any condition for it.
Thanks and regards,
Kshemanth
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