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Re: userspace drivers

From: Marcus Brinkmann
Subject: Re: userspace drivers
Date: Thu, 6 Feb 2003 00:49:14 +0100
User-agent: Mutt/1.5.3i

On Wed, Feb 05, 2003 at 03:06:17PM -0800, Thomas Bushnell, BSG wrote:
> Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de> writes:
> > The question of user interrupt handlers: There is an interface, but I don't
> > think it was ever tried in GNU Mach, so I don't know if that works or can be
> > resurrected.  In any case user space drivers are only interesting in a more
> > modern microkernel like L4.
> I would suggest not spending time right now on user-space drivers.
> They are interesting in Mach, but it's the kind of thing that we might
> well end up throwing away upon a switch to another kernel.

Rather the other way round:  It makes sense to start with that when switching
to another kernel, while it probably doesn't make a whole lot of sense with
Mach performance wise.

Peter, Moritz and me plan to discuss user space drivers for the Hurd on L4 this
weekend in Bruxelles.  People at FOSDEM who are interested in this are
welcome to join in.


`Rhubarb is no Egyptian god.' GNU      http://www.gnu.org    marcus@gnu.org
Marcus Brinkmann              The Hurd http://www.gnu.org/software/hurd/

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