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From: Lee Cremeans <cremeans@csugrad.cs.vt.edu>
Message-Id: <199603060340.WAA10648@csugrad.cs.vt.edu>
Subject: Re: Intel Atlantis problems
To: terry@lambert.org (Terry Lambert)
Date: Tue, 5 Mar 1996 22:40:26 -0500 (EST)
Cc: hackers@freebsd.org
In-Reply-To: <199603051836.LAA08752@phaeton.artisoft.com> from "Terry Lambert" at Mar 5, 96 11:36:08 am
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[about MACH 64s and port 0x2e8]

> > Thanks. Isn't this something that should go in the FAQ ? Or perhaps,
> > could we remove 0x2e8 from
> > 
> >     static Port_t likely_com_ports[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, };
> > 
> > in /sys/i386/isa/sio.c ?
> 
> That's the hack.
> 
> As to your idea, no.  We should identify the Mach cards, or we should
> relax the invasiveness of the SIO probe code to prevent the problem.
 
This could work, since ATI cards in general are REALLY easy to identify.
ATI writes their own BIOS usually, and grepping it for ATI's magic number 
should work (if that isn't a Bad Thing under Unix). The number was a string,
something like "761992..."  I don't remember exactly, I'll look it up in the
INterrupt Lists. THere's also another number that tells you what kind of card 
you're working with.

Lee C at school