Home :: International :: Manuals :: Howto :: FAQ :: Man Pages :: Email Login

 
 

 

IOPL

Section: Linux Programmer's Manual (2)
Updated: 24 July 1993
Index Return to Main Contents
 

̾Á°

iopl - I/O ÆÃ¸¢¥ì¥Ù¥ë¤òÊѹ¹¤¹¤ë  

½ñ¼°

#include <unistd.h> /* for libc5 */
#include <sys/io.h> /* for glibc */

int iopl(int level);  

ÀâÌÀ

iopl ¤Ï¤³¤Î¥×¥í¥»¥¹¤Î I/O ÆÃ¸¢¥ì¥Ù¥ë¤ò level ¤Ç»ØÄꤷ¤¿ÃͤËÊѹ¹¤¹¤ë¡£

¤³¤Î´Ø¿ô¤Ï 8514¸ß´¹¤Î X ¥µ¡¼¥Ð¤ò Linux ¤Çưºî¤µ¤»¤ë¤¿¤á¤ËɬÍפǤ¢¤ë¡£ ¤Ê¤¼¤Ê¤é¤³¤Î X ¥µ¡¼¥Ð¤Ï 65536 ¸Ä¤Î I/O ¥Ý¡¼¥ÈÁ´¤Æ¤Ø¤Î¥¢¥¯¥»¥¹¤òÍ×µá ¤¹¤ë¤Î¤Ç ioperm ´Ø¿ô¤Ç¤ÏÉÔ½½Ê¬¤À¤«¤é¤Ç¤¢¤ë¡£

¤è¤ê¹â¤¤ I/O ÆÃ¸¢¥ì¥Ù¥ë¤Ç¤Îưºî¤ò¤µ¤»¤ë¤³¤È¤Ë¤è¤Ã¤Æ I/O ¥Ý¡¼¥È¥¢¥¯¥»¥¹¤ÎÀ©¸Â¤ò²ò½ü¤¹¤ë¤³¤È¤Ë²Ã¤¨¤Æ¡¢¥×¥í¥»¥¹¤¬³ä¤ê¹þ¤ß¤ò ̵»ë¤¹¤ë¤³¤È¤¬¤Ç¤­¤ë¤è¤¦¤Ë¤Ê¤ë¡£¤³¤Îµ¡Ç½¤Ï»þ¤È¤·¤Æ¥·¥¹¥Æ¥à¤ÎÇ˲õ¤ò¤â ¤¿¤é¤¹¤Î¤Ç´«¤á¤é¤ì¤Ê¤¤¡£

fork ¤ä exec ¤·¤¿¾ì¹ç¡¢ÆÃ¸¢¤Ï·Ñ¾µ¤µ¤ì¤ë¡£

Ä̾ï¤Î¥×¥í¥»¥¹¤Î I/O ÆÃ¸¢¥ì¥Ù¥ë¤Ï 0 ¤Ç¤¢¤ë¡£

 

ÊÖ¤êÃÍ

À®¸ù¤·¤¿¾ì¹ç¤Ë¤Ï 0 ¤òÊÖ¤¹¡£¥¨¥é¡¼¤Î¾ì¹ç¤Ë¤Ï -1 ¤òÊÖ¤·¡¢ errno ¤ËŬÀÚ¤ÊÃͤËÀßÄꤹ¤ë¡£  

¥¨¥é¡¼

EINVAL
°ú¤­¿ô level ¤¬ 3 ¤è¤êÂ礭¤¤¡£
EPERM
¸½ºß¤Î¥æ¡¼¥¶¤¬¥¹¡¼¥Ñ¡¼¥æ¡¼¥¶¡¼¤Ç¤Ï¤Ê¤¤¡£

 

¥«¡¼¥Í¥ë¡¦¥½¡¼¥¹¤è¤ê¤ÎÃí°Õ

iopl ¤Ï 0x3ff ÈÖÃϤòͤ¨¤ëÈϰϤˤ¢¤ë I/O ¥Ý¡¼¥ÈÁ´¤Æ¤Ë¥¢¥¯¥»¥¹¤·¤¿¤¤¾ì¹ç¤Ë»ÈÍѤ¹¤ë¡£ ¤â¤· ioperm ¤ò³ÈÄ¥¤·¤Æ 65536 ¸Ä¤Î I/O ¥Ý¡¼¥È¤òÁ´¤Æ¤Ë¥¢¥¯¥»¥¹¸¢¸ÂÍѤΠ¥Ó¥Ã¥È¥Þ¥Ã¥×¤ò½àÈ÷¤·¤¿¤È¤¹¤ë¤È¡¢¥×¥í¥»¥¹¤´¤È¤Ë 8kB ¤¬É¬ÍפȤʤ롣 ¤³¤ì¤Ï¹Ô¤­²á¤®¤Ç¤¢¤ë¡£

 

½àµò

iopl ¤Ï Linux ÆÃÍ­¤Î´Ø¿ô¤Ç¤¢¤ê¡¢°Ü¿¢¤ò°Õ¿Þ¤·¤¿¥×¥í¥°¥é¥à¤Ç »ÈÍѤ·¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£  

Ãí°Õ

libc5 ¤Ç¤Ï¥·¥¹¥Æ¥à¥³¡¼¥ë¤È¤·¤Æ°·¤¤ <unistd.h> ¤Ë¥×¥í¥È¥¿¥¤¥×¤¬Â¸ºß¤·¤Æ¤¤¤ë¡£ Glibc1 ¤Ë¤Ï¥×¥í¥È¥¿¥¤¥×¤Ï¸ºß¤·¤Æ¤¤¤Ê¤¤¡£ Glibc2 ¤Ï <sys/io.h> ¤È <sys/perm.h> ¤ÎξÊý¤Ë¥×¥í¥È¥¿¥¤¥×¤ò»ý¤Ã¤Æ¤¤¤ë¡£ ¸å¼Ô¤Ï i386 ¤Î¤ß¤ÇÍøÍѲÄǽ¤Ê¤Î¤Ç¡¢»ÈÍѤ¹¤Ù¤­¤Ç¤Ï¤Ê¤¤¡£  

´ØÏ¢¹àÌÜ

ioperm(2)


 

Index

̾Á°
½ñ¼°
ÀâÌÀ
ÊÖ¤êÃÍ
¥¨¥é¡¼
¥«¡¼¥Í¥ë¡¦¥½¡¼¥¹¤è¤ê¤ÎÃí°Õ
½àµò
Ãí°Õ
´ØÏ¢¹àÌÜ

 
 
 
 
Google
  Web Linuxinfor   
 

Home :: Copyright :: Privacy :: Credits :: Get a free Linuxinfor Email Account

Document on this page is part of "Linuxinfor Man Pages in HTML Format: man2". See Index Page for more info about Authorship and Copyright.

1999-2008 Linuxinfor.com. No rights reserved.