[LAD] ALSA latency and MMAP

Paul Davis paul at linuxaudiosystems.com
Mon Sep 7 16:14:54 UTC 2009


On Mon, Sep 7, 2009 at 10:54 AM, Clemens Ladisch<clemens at ladisch.de> wrote:
> Paul Davis wrote:
>> snd_pcm_write() and snd_pcm_read(), IIRC, allow reads&writes of chunks
>> of data that are not period-sized.
>
> Yes.  So does snd_pcm_mmap_commit().

something must have changed. "back in the day", you could not possible
use the mmap API to deliver > 1 period at a time. has that changed?



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