Date: Tue, 16 Jan 1996 13:08:49 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: scott@patton.com (Scott Whittle) Cc: hackers@FreeBSD.org Subject: Re: Request examples of using outb() in inb()in program. Message-ID: <199601160238.NAA27039@genesis.atrad.adelaide.edu.au> In-Reply-To: <199601151554.KAA23095@emma.patton.com> from "Scott Whittle" at Jan 15, 96 10:54:30 am
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Scott Whittle stands accused of saying:
>
> 'Lo all -
> I recently saw a thread on I/O at the port level using outb() and inb().
> Would someone post (or email) some source showing the use of each.
>
> I wrote a small program, which complied fine, but when I ran it (as root)
> it puked big time. I'm not into the frustration thing, so I figure I'd ask
> those who know. :)
How about you send us your source so we can pick over it? Here's an example :
open("/dev/io",O_RDONLY,0);
i = inb(0x300); /* fiddle with port 0x300 */
outb(0x300,i+1);
> Scott Whittle email: scott@patton.com
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