Date: Thu, 20 Nov 1997 13:59:37 -0800 From: Jonathan Mini <j_mini@efn.org> To: "Jamil J. Weatherbee" <jamil@trojanhorse.ml.org> Cc: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>, hackers@freebsd.org Subject: Re: vnode.h and IO_NDELAY (help!!) Message-ID: <19971120135937.07786@micron.mini.net> In-Reply-To: <Pine.BSF.3.96.971120113458.1864C-100000@trojanhorse.ml.org>; from Jamil J. Weatherbee on Thu, Nov 20, 1997 at 11:41:25AM -0800 References: <19971120090611.FW37911@uriah.heep.sax.de> <Pine.BSF.3.96.971120113458.1864C-100000@trojanhorse.ml.org>
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Jamil J. Weatherbee <jamil@trojanhorse.ml.org> stands accused of saying: > [ ... snip ... ] By the way, how are you supposed to pick > ioctl groups. I am currently using 'A', but i see 'D' being used also. > Is there a list of which letter you should use. I assume lowercase are > reserved for the system and you should always use uppercase in new > drivers? ioctl group ID's are local to each device driver. They are used soely for groupsing ioctl's into groups by your driver. For an example, look at machine/console.h, which defines the ioctls for syscons/pcvt. -- Jonathan Mini Ingenious Productions Software Development P.O. Box 5693, Eugene, Or. 97405 "A child of five could understand this! Quick -- Fetch me a child of five."
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