From owner-freebsd-hackers  Tue Jan 16 06:48:51 1996
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Date: Tue, 16 Jan 1996 09:46:40 -0500 (EST)
From: Sujal Patel <smpatel@wam.umd.edu>
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To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
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Subject: Re: Request examples of using outb() in inb()in program.
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On Tue, 16 Jan 1996, J Wunsch wrote:

> KDENABIO is not the preferred way, it's the traditional way.  It
> requires root priv's (as opposed to /dev/io which is subject to normal
> file access constraints), and it's only available if your kernel does
> have either syscons or pcvt configured.  Both drivers are optional
> however.

Like KDENABIO, the default permissions on /dev/io restrict it to root 
only, which is the way it should be IMHO.


Sujal