Date: Thu, 18 Sep 1997 07:17:37 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: sos@sos.freebsd.dk (Søren Schmidt) Cc: tlambert@primenet.com, hackers@freebsd.org Subject: Re: INB question Message-ID: <199709180717.AAA18398@usr06.primenet.com> In-Reply-To: <199709180656.IAA01026@sos.freebsd.dk> from "Søren Schmidt" at Sep 18, 97 08:56:54 am
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> > 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? I need an MCA bus detect. 8-(. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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