Hi all,
In the file pcm_lib.c and in the funtion -
snd_pcm_hw_ptr_interrupt() , there are the following lines --
-----------------
delta = hw_ptr_interrupt - new_hw_ptr;
if(delta > 0) {
if( delta < runtime->buffer_size / 2) {
snd_printd("Unexpected hw_pointer value .... wrong interrupt
acknowledge?\n"...);
return 0;
}
runtime->hw_ptr_base += runtime->buffer_size;
-------
------
-------
}
-----------------
Can you pls clarify what these lines are doing? what is the significance
of delta and the significance of delta > 0 but less than
runtime->buffer_size/2 being a case of wrong interrupt ack.
thanx in advance,
Pannaga Bhushan
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