/* This file is based on: $XFree86: xc/programs/Xserver/hw/xfree86/etc/scanpci.c,v 3.34.2.17 1998/11/10 11:55:40 dawes Exp $ Modified for readability by Nick Kurshev */ #include #include #include #include #ifndef GCCUSESGAS #define GCCUSESGAS #endif static int io_fd; static __inline__ int enable_os_io(void) { io_fd = -1 ; if ((io_fd = open("/dev/console", O_RDWR, 0)) < 0) { perror("/dev/console"); return errno; } if (ioctl(io_fd, PCCONENABIOPL, 0) < 0) { perror("ioctl(PCCONENABIOPL)"); return errno; } return 0; } static __inline__ int disable_os_io(void) { if (ioctl(io_fd, PCCONDISABIOPL, 0) < 0) { perror("ioctl(PCCONDISABIOPL)"); close(io_fd); return errno; } close(io_fd); return 0; }