25 Jun
2008
25 Jun
'08
6:45 p.m.
At Wed, 25 Jun 2008 10:44:19 +0200, Norbert van Bolhuis wrote:
is the boundary sw parameter still used ?
Yes.
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) ?
No.
Takashi