1.\" Copyright (c) 1999 Chris Costello 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/share/man/man9/make_dev.9,v 1.2.2.3 2001/12/17 11:30:18 ru Exp $ 26.\" $DragonFly: src/share/man/man9/make_dev.9,v 1.2 2003/06/17 04:37:01 dillon Exp $ 27.\" 28.Dd September 25, 1999 29.Os 30.Dt MAKE_DEV 9 31.Sh NAME 32.Nm make_dev , 33.Nm destroy_dev 34.Nd "Create or destroy dev_t for a new device" 35.Sh SYNOPSIS 36.In sys/types.h 37.In sys/conf.h 38.Ft dev_t 39.Fn make_dev "struct cdevsw *cdevsw" "int minor" "uid_t uid" "gid_t gid" "int perms" "char *fmt" ... 40.Ft void 41.Fn destroy_dev "dev_t dev" 42.Sh DESCRIPTION 43The 44.Fn make_dev 45function creates a 46.Fa dev_t 47structure for a new device. 48The device will be owned by 49.Va uid , 50with the group ownership as 51.Va gid , 52and with the name as specified in 53.Va name . 54The permissions of the file specified in 55.Va perms 56are defined in 57.Aq Pa sys/stat.h : 58.Pp 59.Bd -literal -offset indent -compact 60#define S_IRWXU 0000700 /* RWX mask for owner */ 61#define S_IRUSR 0000400 /* R for owner */ 62#define S_IWUSR 0000200 /* W for owner */ 63#define S_IXUSR 0000100 /* X for owner */ 64 65#define S_IRWXG 0000070 /* RWX mask for group */ 66#define S_IRGRP 0000040 /* R for group */ 67#define S_IWGRP 0000020 /* W for group */ 68#define S_IXGRP 0000010 /* X for group */ 69 70#define S_IRWXO 0000007 /* RWX mask for other */ 71#define S_IROTH 0000004 /* R for other */ 72#define S_IWOTH 0000002 /* W for other */ 73#define S_IXOTH 0000001 /* X for other */ 74 75#define S_ISUID 0004000 /* set user id on execution */ 76#define S_ISGID 0002000 /* set group id on execution */ 77#define S_ISVTX 0001000 /* sticky bit */ 78#ifndef _POSIX_SOURCE 79#define S_ISTXT 0001000 80#endif 81.Ed 82.Pp 83The 84.Fn destroy_dev 85function takes the returned 86.Fa dev_t 87from 88.Fn make_dev 89and destroys the registration for that device. 90.Sh HISTORY 91The 92.Fn make_dev 93and 94.Fn destroy_dev 95functions first appeared in 96.Fx 4.0 . 97