Not sure what causes this in the Alsa framework. I only get one at the beginning of the song but not sure how and why I get it. Does it have to do with the return of my pointer callback or because I call snd_period_elapsed in my interrupt routine too soon. Any ideas or docs to read? Bruce _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel