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pciutils

    1: /*
    2:  *	The PCI Library -- Access to i386 I/O ports on Linux
    3:  *
    4:  *	Copyright (c) 1997--2006 Martin Mares <mj@ucw.cz>
    5:  *
    6:  *	Can be freely distributed and used under the terms of the GNU GPL.
    7:  */
    8: 
    9: #ifdef __GLIBC__
   10: #include <sys/io.h>
   11: #else
   12: #include <asm/io.h>
   13: #endif
   14: 
   15: static int
   16: intel_setup_io(struct pci_access *a UNUSED)
   17: {
   18:   return (iopl(3) < 0) ? 0 : 1;
   19: }
   20: 
   21: static inline int
   22: intel_cleanup_io(struct pci_access *a UNUSED)
   23: {
   24:   iopl(3);
   25:   return -1;
   26: }