Date: Sun, 31 Dec 1995 14:11:20 +1100 (EST) From: David Dawes <dawes@rf900.physics.usyd.edu.au> To: jkh@time.cdrom.com (Jordan K. Hubbard) Cc: hackers@freebsd.org Subject: Re: /dev/io Message-ID: <199512310311.OAA16531@rf900.physics.usyd.edu.au> In-Reply-To: <8724.820374911@time.cdrom.com> from "Jordan K. Hubbard" at Dec 30, 95 05:55:11 pm
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>> To me it seems like it would be more "standard" if FreeBSD supported an >> implementation like NetBSD's. It would also pave the way for the >> implementation of IO permission bitmaps (if they are ever needed). Changing >> it would probably be a little more secure, and I can't even think of any >> programs that would break if /dev/io was removed? > >I think a few X servers would definitely break of /dev/io went away >suddently, but I also see no reason why the other interface couldn't >be implemented in parallel with a change-over at some point in the >future. For what it's worth, the XFree86 servers get I/O permission by using the KDENABIO ioctl in the console driver rather than by opening /dev/io. David
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