1 #ifndef _SYS_IO_H 2 #define _SYS_IO_H 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 #include <features.h> 8 9 #include <bits/io.h> 10 11 int iopl(int); 12 int ioperm(unsigned long, unsigned long, int); 13 14 #ifdef __cplusplus 15 } 16 #endif 17 #endif 18