b7d11eb685
Submitted by: Akira Ikeuchi <a_ikeuchi@mic.mitsumi.co.jp> Reviewed by: Watanabe Kazuhiro <CQG00620@nifty.ne.jp>
83 lines
2.6 KiB
Groff
83 lines
2.6 KiB
Groff
.\" Copyright (c) 1998 Jonathan Lemon
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" %FreeBSD: src/lib/libc/i386/sys/i386_get_ioperm.2,v 1.11 2004/07/02 23:52:11 ru Exp %
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.\"
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.\" $FreeBSD$
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.Dd July 27, 1998
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.Os
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.Dt I386_GET_IOPERM 2
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.Sh 名称
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.Nm i386_get_ioperm ,
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.Nm i386_set_ioperm
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.Nd i386 入出力ポート空間へのプロセスごとのアクセスを管理する
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.Sh ライブラリ
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.Lb libc
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.Sh 書式
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.In machine/sysarch.h
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.Ft int
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.Fn i386_get_ioperm "unsigned int start" "unsigned int *length" "int *enable"
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.Ft int
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.Fn i386_set_ioperm "unsigned int start" "unsigned int length" "int enable"
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.Sh 解説
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.Fn i386_get_ioperm
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システムコールは、プロセスの入出力ポート空間についてのパーミッションを
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.Fa *enable
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引数内に返します。
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ポートの範囲は
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.Fa start
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で開始し、連続エントリの数が
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.Fa *length
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内に返されます。
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.Pp
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.Fn i386_set_ioperm
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システムコールは、
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.Fa start
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引数と
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.Fa length
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引数によって記述された入出力ポートの範囲へのアクセスを
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.Fa enable
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引数で指定された状態に設定します。
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.Sh 戻り値
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.Rv -std
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.Sh エラー
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.Fn i386_get_ioperm
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と
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.Fn i386_set_ioperm
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システムコールは次の場合に失敗します:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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.Fa start
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または
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.Fa length
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引数に無効な範囲が指定されました。
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.It Bq Er EPERM
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i386_set_ioperm の呼び出し側がスーパユーザではありませんでした。
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.El
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.Sh 関連項目
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.Xr io 4
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.Sh 作者
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このマニュアルページは
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.An Jonathan Lemon
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が作成しました。
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