Add a few more manpages from Chad.

Fold major.9, minor.9, umajor.9, and uminor.9 into a single device_ids.9.

1 files changed, 75 insertions, 0 deletions

diff --git a/share/man/man9/device_ids.9 b/share/man/man9/device_ids.9
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+.\"
+.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
+.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
+.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+.\" DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd July 9, 2001
+.Dt DEVICE_IDS 9
+.Os
+.Sh NAME
+.Nm device_ids ,
+.Nm major ,
+.Nm minor ,
+.Nm umajor ,
+.Nm uminor
+.Nd "calculate device ids"
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/systm.h
+.Ft int
+.Fn major "dev_t dev"
+.Ft int
+.Fn minor "dev_t dev"
+.Ft int
+.Fn umajor "udev_t id"
+.Ft int
+.Fn uminor "udev_t id"
+.Sh DESCRIPTION
+The
+.Nm
+family of functions take either the raw device ID,
+.Fa id ,
+or a pointer to the device structure,
+.Fa dev ,
+and return the integer
+value that is the major or minor device ID as requested.
+.Pp
+The actual major and minor device IDs are values masked from of the raw device ID.
+For details on the actual calculations used to determine the major or minor IDs see
+the actual source in
+.Pa kern_conf.c .
+.Sh RETURN VALUES
+An integer greater than zero and less than
+.Dv NUMCDEVSW .
+.Fn major
+and
+.Fn minor
+will return
+.Dv NOUDEV
+if the device is invalid.
+.Sh AUTHORS
+This man page was written by
+.An Chad David Aq davidc@acns.ab.ca .