Jon Smirl wrote: > On Mon, Aug 10, 2009 at 3:40 AM, Clemens Ladisch<clemens@xxxxxxxxxx> wrote: >> There is no common code for the two substreams. >> Is your hardware actually capable of starting them at exactly the same >> time? > > Sync start is working. This is in the loop and starts the streams: > bcom_enable(s->bcom_task); > s is set to two different values in the loop. But you are calling bcom_enable() twice, once for each stream. The same would happen if you didn't implement sync start and let ALSA handle the linked streams. Sync start/stop is intended for hardware that can actually start two streams at _exactly_ the same time, by, e.g., writing a value with two bits set to a register. > I'm having problems with the drain error on stop. > ALSA sound/core/pcm_native.c:1499: playback drain error (DMA or IRQ trouble?) ALSA did not get the snd_pcm_period_elapsed() call (or the correct pointer value) for the last samples. HTH Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
