Date: Sat, 25 Oct 1997 17:35:29 +0930 From: Mike Smith <mike@smith.net.au> To: "Jamil J. Weatherbee" <jamil@trojanhorse.ml.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: ioctl() base command groups Message-ID: <199710250805.RAA00531@word.smith.net.au> In-Reply-To: Your message of "Fri, 24 Oct 1997 15:12:48 MST." <Pine.BSF.3.96.971024151138.1236A-100000@trojanhorse.ml.org>
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> > Are the groups used in the _IO* macros, which are usually a single > character supposed to have some systematic system of assignment? No, not really. They combine with the other attributes of the ioctl to help make the code unique, but there's nothing magic about them. mike
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