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freebsd/share/man/man9/make_dev.9
Bruce Evans bd00dbfafc "Fixed" assorted bitrot. remove_dev() was renamed to destroy_dev().
VOP_ABORTOP() went away.  at_shutdown() was replaced by undocumented
event handling.  Rename remove_dev() here too, and remove the dead
and dead wrong man pages.
1999-12-23 17:16:32 +00:00

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.\" Copyright (c) 1999 Chris Costello
.\" All rights reserved.
.\"
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" $FreeBSD$
.\"
.Dd September 25, 1999
.Os
.Dt MAKE_DEV 9
.Sh NAME
.Nm make_dev ,
.Nm destroy_dev
.Nd "Create or destroy dev_t and devfs registration for a new device"
.Sh SYNOPSIS
.Fd #include <sys/types.h>
.Fd #include <sys/conf.h>
.Ft dev_t
.Fn make_dev "struct cdevsw *cdevsw" "int minor" "uid_t uid" "gid_t gid" "int perms" "char *fmt" ...
.Ft void
.Fn destroy_dev "dev_t dev"
.Sh DESCRIPTION
The
.Fn make_dev
function creates a
.Fa dev_t
structure for a new device. If DEVFS is available, it is also notified of
the presence of the new device. The device will be owned by
.Va uid ,
with the group ownership as
.Va gid ,
and with the name as specified in
.Va name .
The permissions of the file specified in
.Va perms
are defined in
.Aq Pa sys/stat.h :
.Pp
.Bd -literal -offset indent -compact
#define S_IRWXU 0000700 /* RWX mask for owner */
#define S_IRUSR 0000400 /* R for owner */
#define S_IWUSR 0000200 /* W for owner */
#define S_IXUSR 0000100 /* X for owner */
#define S_IRWXG 0000070 /* RWX mask for group */
#define S_IRGRP 0000040 /* R for group */
#define S_IWGRP 0000020 /* W for group */
#define S_IXGRP 0000010 /* X for group */
#define S_IRWXO 0000007 /* RWX mask for other */
#define S_IROTH 0000004 /* R for other */
#define S_IWOTH 0000002 /* W for other */
#define S_IXOTH 0000001 /* X for other */
#define S_ISUID 0004000 /* set user id on execution */
#define S_ISGID 0002000 /* set group id on execution */
#define S_ISVTX 0001000 /* sticky bit */
#ifndef _POSIX_SOURCE
#define S_ISTXT 0001000
#endif
.Ed
.Pp
The
.Fn destroy_dev
function takes the returned
.Fa dev_t
from
.Fn make_dev
and destroys the registration for that device.
.Sh HISTORY
The
.Fn make_dev
and
.Fn destroy_dev
functions first appeared in
.Fx 4.0 .