[linux-audio-dev] HELP:porting linux audio driver to RTLinux(rtlinux core driver)

[Jan Depner]

On Fri, 2005-04-08 at 14:51, Paul Davis wrote:
> >    I'm not sure why he's trying to do this because for audio the latest
> >patched kernels appear to be more than adequate.  That said, I don't
> >think you can get a guaranteed 15 microsecond interrupt response with
> >anyone's patches to the standard kernel.  I wouldn't call what we have
> 
> true, but the problem with RTLinux is that you can get that kind of
> response there either if your app involves stuff that runs in the
> normal Linux kernel controlled space. to get that response, everything
> has to be done within the RT-part of RTLinux, which is *not* a
> POSIX-like development environment, for the simple reason that it
> offers normal Linux as well :)
> 
> victor and i have spoken on the phone a few times about this (we used
> to debate a lot on rec.talk.politics back in the mid-90s, and had
> similar life aspirations). i just don't see it happening for anything
> except a dedicated flat-front-panel embedded system. and given
> Receptor/Plugzilla, perhaps not even then.
> 

    Actually, I don't think that it's necessary for what we're doing.  I
was strictly speaking of doing serious hard real-time with the RT-Linux
microkernel (or VXWorks if you've got the bucks).

Jan