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Date:      Tue, 16 Jan 1996 21:53:46 +0100 (MET)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freebsd.org (FreeBSD hackers)
Subject:   Re: Request examples of using outb() in inb()in program.
Message-ID:  <199601162053.VAA19105@uriah.heep.sax.de>
In-Reply-To: <Pine.BSF.3.91.960116094445.6397A-100000@sl-000.sl.cybercomm.net> from "Sujal Patel" at Jan 16, 96 09:46:40 am

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As Sujal Patel wrote:
> 
> Like KDENABIO, the default permissions on /dev/io restrict it to root 
> only, which is the way it should be IMHO.

Not until very recently.  /dev/io used to be open to (setgid) kmem.
Note that read permissions to the special file are sufficient.  (See
io(4), in a fairly recent -current.)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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