Date: Tue, 30 Nov 1999 13:21:49 -0500 (EST) From: Cliff Addy <fbsdlist@federation.addy.com> To: Dan Nelson <dnelson@emsphone.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Reading an IO address Message-ID: <Pine.BSF.3.95q.991130132123.7513A-100000@federation.addy.com> In-Reply-To: <19991130000346.A47191@dan.emsphone.com>
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On Tue, 30 Nov 1999, Dan Nelson wrote: > In the last episode (Nov 29), Cliff Addy said: > > val=inb(0x180) > > > > the program coredumps with a "Bus error" message. Interestingly enough, I > > I/O access is restricted to root. In addition, you either need to open > /dev/io (to get unrestricted access to all IO ports), or call > i386_set_ioperm() with the port range you want to fiddle with. "man io" > or "man i386_set_ioperm" for more info. That did the trick, thanks! Cliff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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