Rob Nertney wrote: > an IRQ every 32Bytes (half-frame) > > I wrote my handler as described in the high-frequency interrupts described > here: > http://www.alsa-project.org/~tiwai/writing-an-alsa-driver/ch05s07.html This does not make sense; you need a timer only when you do not have a proper interrupt. Why do you think you need to do it this way? > My data is valid until 1/4 buffer full, then it interleaves stale (lower > numbers) in, replacing the desired numbers. It's sporadic, and it appears > to repeat, as if ALSA never returns to the 0-offset of dma_area. ALSA just reports what your driver tells it; this sounds like a bug in your driver or in the hardware. Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel