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Re: [Openvortex-dev] the loop problems
From: |
Ryan Underwood |
Subject: |
Re: [Openvortex-dev] the loop problems |
Date: |
Thu, 3 Jul 2003 00:05:20 -0500 |
User-agent: |
Mutt/1.5.4i |
Hi Manuel,
On Wed, Jul 02, 2003 at 08:40:46PM -0400, Manuel Jander wrote:
> Hi,
>
> On Wed, 2003-07-02 at 15:04, Ryan Underwood wrote:
> > Hi,
> >
> > Perhaps we are having serialization issues in the read/write_codec
> > functions for the vortex? I see in a lot of other ALSA drivers and
> > kernel drivers that the rmb/wmb/mb() functions are used whenever a tight
> > loop is going to be executed to ensure that everything is flushed out or
> > somesuch beforehand.
> >
>
> I just want to remind you that the Aureal cards use Bus Master DMA...
> There is no programmed IO audio data transfer. YOu set up the buffers
> and the rest is done by the card itself.
Is that true for the memory mapped I/O as well?
--
Ryan Underwood, <nemesis at icequake.net>, icq=10317253