Radivoje Jovanovic wrote: > ALSA hits trigger method in my driver and soon after it leaves my trigger > method throws an null pointer exception What code hits a NULL pointer? > I am wondering if the ALSA will call SNDRV_PCM_TRIGGER_START every single > time new buffer is available. No, once the stream is started, ALSA expects the device to run by itself (if not, the driver has to use timers). Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel