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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (c) 1993 Michael Haardt
.\" (michael@moria.de)
.\" Fri Apr 2 11:32:09 MET DST 1993
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" The GNU General Public License's references to "object code"
.\" and "executables" are to be interpreted as the output of any
.\" document formatting or typesetting system, including
.\" intermediate and printed output.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
.\" License along with this manual; if not, write to the Free
.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
.\" USA.
.\"
.\" Modified Sat Jul 24 15:12:05 1993 by Rik Faith <faith@cs.unc.edu>
.\" Modified Tue Aug 1 16:27 1995 by Jochen Karrer
.\" <cip307@cip.physik.uni-wuerzburg.de>
.\" Modified Tue Oct 22 08:11:14 EDT 1996 by Eric S. Raymond <esr@thyrsus.com>
.\" Modified Mon Feb 15 17:28:41 CET 1999 by Andries E. Brouwer <aeb@cwi.nl>
.\" Modified, 27 May 2004, Michael Kerrisk <mtk.manpages@gmail.com>
.\" Added notes on capability requirements
.\"
.\" Japanese Version Copyright (c) 1997 HORIMOTO Masafumi
.\" all rights reserved.
.\" Translated 1997-09-11, HORIMOTO Masafumi
.\" Modified 1999-04-03, HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated 2003-10-12, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2005-02-24, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\" Updated 2007-01-07, Akihiro MOTOKI, catch up to LDP v2.43
.\"
.TH IOPERM 2 2007-06-15 "Linux" "Linux Programmer's Manual"
.SH ̾
ioperm \- ݡȤϵĤꤹ
.SH
.B #include <unistd.h>
/* for libc5 */
.br
.B #include <sys/io.h>
/* for glibc */
.sp
.BI "int ioperm(unsigned long " from ", unsigned long " num ", int " turn_on );
.SH
.BR ioperm ()
ϡ \fIfrom\fP I/O ݡȥɥ쥹
\fInum\fP ХʬΰФ롢ƤӽФץ
ĥӥåȤ\fIturn_on\fP ꤹ롣
\fIturn_on\fP 0 ʳξ硢ƤӽФץø
.RB ( CAP_SYS_RAWIO )
äƤʤФʤʤ
.\" FIXME is the following ("Only the first 0x3ff I/O ports can be
.\" specified in this manner") still true? Looking at changes in
.\" include/asm-i386/processor.h between 2.4 and 2.6 suggests
.\" that the limit is different in 2.6.
ˡǤΤ 0x3ff ϤޤǤ I/OݡȤ˸¤롣
礭ʥɥ쥹ΥݡȤФƤ
.BR iopl (2)
ؿȤʤФʤʤ
.BR fork (2)
Ǻ줿ҥץˤϷѾʤ
.BR execve (2)
ǥ¸롣εǽ
øץ˥ݡȤؤΥ
ͿΤ˻ѤǤ롣
ΥƥॳϤۤȤ i386 ƥΤΤΤǤ롣
¾¿ΥƥǤ¸ߤʤ˥顼֤
.SH ֤
ˤ 0 ֤顼ξ \-1 ֤
.I errno
Ŭڤͤꤹ롣
.SH 顼
.TP
.B EINVAL
.I from
ޤ
.I num
ͤǤ롣
.TP
.B EIO
(PowerPC ) ΥƥॳϥݡȤƤʤ
.TP
.B ENOMEM
.\" Could not allocate I/O bitmap.
.TP
.B EPERM
ƤӽФץ˽ʬʸ¤ʤä
.SH
.BR ioperm ()
Linux ͭδؿǤꡢܿտޤץ
ѤƤϤʤʤ
.SH
libc5 ǤϥƥॳȤư
.I <unistd.h>
˥ץȥפ¸ߤƤ롣
glibc1 ˤϥץȥפ¸ߤʤ
glibc2
.I <sys/io.h>
.I <sys/perm.h>
ξ˥ץȥפäƤ롣
Ԥ i386 ΤߤѲǽʤΤǡѤ٤ǤϤʤ
.SH Ϣ
.BR iopl (2),
.BR capabilities (7)
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