1997-03-03 18:01:01 +00:00
|
|
|
.\" -*- nroff -*-
|
|
|
|
.\"
|
|
|
|
.\" Copyright (c) 1996 Doug Rabson
|
|
|
|
.\"
|
|
|
|
.\" All rights reserved.
|
|
|
|
.\"
|
|
|
|
.\" This program is free software.
|
|
|
|
.\"
|
|
|
|
.\" 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, this list of conditions and the following disclaimer.
|
|
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
.\" notice, 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 DEVELOPERS ``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 DEVELOPERS 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.
|
|
|
|
.\"
|
1999-08-28 00:22:10 +00:00
|
|
|
.\" $FreeBSD$
|
1997-03-03 18:01:01 +00:00
|
|
|
.\"
|
|
|
|
.Dd July 24, 1996
|
|
|
|
.Dt VOP_IOCTL 9
|
2010-04-14 19:08:06 +00:00
|
|
|
.Os
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh NAME
|
|
|
|
.Nm VOP_IOCTL
|
|
|
|
.Nd device specific control
|
|
|
|
.Sh SYNOPSIS
|
2001-10-01 16:09:29 +00:00
|
|
|
.In sys/param.h
|
|
|
|
.In sys/vnode.h
|
1997-03-03 18:01:01 +00:00
|
|
|
.Ft int
|
2001-11-20 18:19:19 +00:00
|
|
|
.Fn VOP_IOCTL "struct vnode *vp" "u_long command" "caddr_t data" "int fflag" "struct ucred *cred" "struct thread *td"
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh DESCRIPTION
|
1997-03-04 06:20:48 +00:00
|
|
|
Manipulate a file in device dependent ways.
|
1997-03-03 18:01:01 +00:00
|
|
|
.Pp
|
|
|
|
Its arguments are:
|
|
|
|
.Bl -tag -width command
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa vp
|
2005-01-28 10:43:05 +00:00
|
|
|
The vnode of the file (normally representing a device).
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa command
|
2005-01-28 10:43:05 +00:00
|
|
|
The device specific operation to perform.
|
2005-05-24 12:33:29 +00:00
|
|
|
.It Fa data
|
2005-01-28 10:43:05 +00:00
|
|
|
Extra data for the specified operation.
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa fflag
|
2005-01-28 10:43:05 +00:00
|
|
|
Some flags ???
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa cred
|
2005-01-28 10:43:05 +00:00
|
|
|
The caller's credentials.
|
2003-05-31 14:07:25 +00:00
|
|
|
.It Fa td
|
2005-01-28 10:43:05 +00:00
|
|
|
The calling thread.
|
1997-03-03 18:01:01 +00:00
|
|
|
.El
|
|
|
|
.Pp
|
2002-12-12 17:26:04 +00:00
|
|
|
Most file systems do not implement this entry point.
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh LOCKS
|
|
|
|
The file should not be locked on entry.
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
If successful, zero is returned, otherwise an appropriate error code.
|
2002-09-26 14:10:21 +00:00
|
|
|
.Pp
|
2002-11-29 11:39:20 +00:00
|
|
|
If the ioctl is not recognized or not handled,
|
|
|
|
.Er ENOTTY
|
|
|
|
should be returned.
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh SEE ALSO
|
|
|
|
.Xr vnode 9
|
|
|
|
.Sh AUTHORS
|
2005-06-28 20:15:19 +00:00
|
|
|
This manual page was written by
|
1998-03-12 07:31:21 +00:00
|
|
|
.An Doug Rabson .
|