Rob Nertney wrote: > I've made changes to remove the high-frequency. I originally tried > that method because my DMA IRQ fires whenever it writes 1/2 frame (it > doesn't have coalescing support yet). The snd_pcm_hardware is supposed to describe the hardware. > I have a DMA which is looping across 64Kbytes. This is buffer_bytes. > The DMA is configured to interrupt at 32Bytes This is period_bytes. > From what I can tell (please correct me if I'm wrong), the periods_min > and periods_max are up to me to define They describe how often the *hardware* can interrupt. > since i don't interrupt on a period boundary. Periods are *defined* as the data between two interrupts. Mapping ALSA periods to something else makes sense only if the hardware cannot interrupt after a fixed number of bytes. Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
