At Mon, 21 Apr 2008 19:27:45 +0530, Harsha priya gupta wrote: > > 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 Do you use a mmap method? If so, the copy callback won't be called. The copy callback is only for copying the data from the user-space buffer to the driver buffer, which is skipped via mmap. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
