freebsd-dev/lib/libc/i386/sys/i386_get_ioperm.2

.\" Copyright (c) 1998 Jonathan Lemon
.\" 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, 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
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.\" $FreeBSD$
.\"
.Dd July 27, 1998
.Os
.Dt I386_GET_IOPERM 2
.Sh NAME
.Nm i386_get_ioperm ,
.Nm i386_set_ioperm
.Nd manage per-process access to the i386 I/O port space
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In machine/sysarch.h
.Ft int
.Fn i386_get_ioperm "unsigned int start" "unsigned int *length" "int *enable"
.Ft int
.Fn i386_set_ioperm "unsigned int start" "unsigned int length" "int enable"
.Sh DESCRIPTION
The
.Fn i386_get_ioperm
system call
will return the permission for the process' I/O port space in the
.Fa *enable
argument.
The port range starts at
.Fa start
and the number of contiguous entries will be returned in
.Fa *length .
.Pp
The
.Fn i386_set_ioperm
system call
will set access to a range of I/O ports described by the
.Fa start
and
.Fa length
arguments to the state specified by the
.Fa enable
argument.
.Sh RETURN VALUES
.Rv -std
.Sh ERRORS
The
.Fn i386_get_ioperm
and
.Fn i386_set_ioperm
system calls
will fail if:
.Bl -tag -width Er
.It Bq Er EINVAL
An invalid range was specified by the
.Fa start
or
.Fa length
arguments.
.It Bq Er EPERM
The caller of i386_set_ioperm was not the superuser.
.El
.Sh SEE ALSO
.Xr io 4
.Sh AUTHORS
This man page was written by
.An Jonathan Lemon .
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.\" Copyright (c) 1998 Jonathan Lemon`
			`.\" 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, 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.`
			`.\"`
$Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00			`.\" $FreeBSD$`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.\"`
			`.Dd July 27, 1998`
			`.Os`
			`.Dt I386_GET_IOPERM 2`
			`.Sh NAME`
			`.Nm i386_get_ioperm ,`
			`.Nm i386_set_ioperm`
			`.Nd manage per-process access to the i386 I/O port space`
Introduce ".Lb" macro to libc manpages. More libraries manpages updates following. 2000-04-21 09:42:15 +00:00			`.Sh LIBRARY`
			`.Lb libc`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Sh SYNOPSIS`
mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00			`.In machine/sysarch.h`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Ft int`
u_int --> unsigned int, remove (now unneeded) <sys/types.h> 1998-07-28 15:22:51 +00:00			`.Fn i386_get_ioperm "unsigned int start" "unsigned int length" "int enable"`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Ft int`
u_int --> unsigned int, remove (now unneeded) <sys/types.h> 1998-07-28 15:22:51 +00:00			`.Fn i386_set_ioperm "unsigned int start" "unsigned int length" "int enable"`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Sh DESCRIPTION`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`The`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fn i386_get_ioperm`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`system call`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`will return the permission for the process' I/O port space in the`
			`.Fa *enable`
Mechanically kill hard sentence breaks. 2004-07-02 23:52:20 +00:00			`argument.`
			`The port range starts at`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fa start`
			`and the number of contiguous entries will be returned in`
			`.Fa *length .`
			`.Pp`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`The`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fn i386_set_ioperm`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`system call`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`will set access to a range of I/O ports described by the`
Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00			`.Fa start`
			`and`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fa length`
			`arguments to the state specified by the`
			`.Fa enable`
			`argument.`
			`.Sh RETURN VALUES`
Use ``.Rv -std'' wherever possible. Submitted by: yar 2001-08-31 09:57:38 +00:00			`.Rv -std`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Sh ERRORS`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`The`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fn i386_get_ioperm`
			`and`
			`.Fn i386_set_ioperm`
mdoc(7) police: "The .Fn system call". 2002-12-18 12:39:25 +00:00			`system calls`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`will fail if:`
Use `Er' variable to define first column width in ERRORS section. 2000-05-06 12:07:59 +00:00			`.Bl -tag -width Er`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.It Bq Er EINVAL`
Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00			`An invalid range was specified by the`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Fa start`
			`or`
			`.Fa length`
			`arguments.`
			`.It Bq Er EPERM`
			`The caller of i386_set_ioperm was not the superuser.`
			`.El`
Cross-reference io(4). 2001-08-12 21:16:41 +00:00			`.Sh SEE ALSO`
			`.Xr io 4`
oops, forgot to do ``cvs add'' first. 1998-07-28 03:39:04 +00:00			`.Sh AUTHORS`
			`This man page was written by`
			`.An Jonathan Lemon .`