Date: Thu, 18 Sep 1997 09:25:33 +0200 (MEST) From: Søren Schmidt <sos@sos.freebsd.dk> To: tlambert@primenet.com (Terry Lambert) Cc: tlambert@primenet.com, hackers@freebsd.org Subject: Re: INB question Message-ID: <199709180725.JAA01170@sos.freebsd.dk> In-Reply-To: <199709180717.AAA18398@usr06.primenet.com> from Terry Lambert at "Sep 18, 97 07:17:37 am"
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In reply to Terry Lambert who wrote:
> > > If a device doesn't exist, what does inb return? 0xff, right?
> >
> > Wrong, result is not known, and depends on implemetation details
> > on the MB and to some extent the cards put in the bus...
> >
> > > Specifically, how do I know if something lives at a given port?
> >
> > By doing intelligent probes, or knowing up front what to look for..
>
> OK, I give up: other than calling INT 0x15, AH=0xC0, how do I detect
> whether a machine is MCA or not without hard coding it in my kernel
> configuration file?
You giving up, so easy ?? naw....
There must be some device or something on a MCA board thats different
form the ISA/EISA/PCI systems, probe for that...
> I need an MCA bus detect. 8-(.
The only thing I really know about the MCA bus is that I avoid it
like the plaque, besides that I'm not too familliar with it, but
a detect routine cant be that difficult to make...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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