It is called from snd_pcm_lib_ioctl too. In SNDRV_PCM_IOCTL1_RESET case. On 6/23/07, Pharaoh . <pharaoh137@xxxxxxxxx> wrote: > Hi > > In Writing an ALSA driver, it is said that > pointer callback is called usually from the buffer-update routine in > the pcm middle layer, which is invoked when snd_pcm_period_elapsed() > is called in the interrupt routine. Then the pcm middle layer updates > the position and calculates the available space, and wakes up the > sleeping poll threads, etc > > What are the other places from where pointer callback is called? If it > is not called from any other routine then does it mean that interrupts > are occuring? > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
