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mpv/libdha/sysdep/pci_linux.c
alex 3404000366 api changed: enable/disable_os_io returns error-code (or zero if ok) and pciconfig_read exported for mga_vid
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4175 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-01-15 15:59:53 +00:00

26 lines
467 B
C

/*
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 <errno.h>
#ifdef __i386__
#include <sys/perm.h>
#else
#include <sys/io.h>
#endif
static __inline__ int enable_os_io(void)
{
if (iopl(3) != 0)
return(errno);
return(0);
}
static __inline__ int disable_os_io(void)
{
if (iopl(0) != 0)
return(errno);
return(0);
}