[alsa-devel] sw parameter boundary
tiwai at suse.de
Wed Jun 25 17:45:45 CEST 2008
At Wed, 25 Jun 2008 10:44:19 +0200,
Norbert van Bolhuis wrote:
> is the boundary sw parameter still used ?
> where is it for ?
It defines the wrap point to the position 0.
> in the PCM kernel core (e.g. snd_pcm_playback_avail) it clearly serves
> as a pointers wrap point, but which one ?
It's for the absolute position handled internally. This isn't
exported outside, so you don't care much about it, normally.
> The one at the end of the DMA buffer or the one at the end of a process
> (virtual) address range (4 GB) ?
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