[alsa-devel] snd_pcm_ops - .copy

[Harsha priya gupta]

Hi,
I am trying to implement the .copy function of playack_ops in my driver. But
when I try playing an mp3 file, my .copy's function code path was executing.
Suddenly I do not see that function being called. Can anyone help me
understand when the following code path will be executed

snd_pcm_lib_write_transfer
   substream->ops->copy

-Harsha