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Name	Size	Permission
acct.h	3.22 KB	-rw-r--r--
auxv.h	1.25 KB	-rw-r--r--
bitypes.h	86 B	-rw-r--r--
cdefs.h	17.88 KB	-rw-r--r--
debugreg.h	3.49 KB	-rw-r--r--
dir.h	922 B	-rw-r--r--
elf.h	1 KB	-rw-r--r--
epoll.h	4.31 KB	-rw-r--r--
errno.h	19 B	-rw-r--r--
eventfd.h	1.37 KB	-rw-r--r--
fanotify.h	1.26 KB	-rw-r--r--
fcntl.h	19 B	-rw-r--r--
file.h	1.64 KB	-rw-r--r--
fsuid.h	1.16 KB	-rw-r--r--
gmon.h	6.06 KB	-rw-r--r--
gmon_out.h	2.57 KB	-rw-r--r--
inotify.h	3.81 KB	-rw-r--r--
io.h	4.97 KB	-rw-r--r--
ioctl.h	1.7 KB	-rw-r--r--
ipc.h	1.43 KB	-rw-r--r--
kd.h	1.09 KB	-rw-r--r--
klog.h	1.18 KB	-rw-r--r--
mman.h	5.42 KB	-rw-r--r--
mount.h	5.48 KB	-rw-r--r--
msg.h	2.31 KB	-rw-r--r--
mtio.h	10.9 KB	-rw-r--r--
param.h	3.08 KB	-rw-r--r--
pci.h	923 B	-rw-r--r--
perm.h	1.1 KB	-rw-r--r--
personality.h	2.66 KB	-rw-r--r--
poll.h	2.49 KB	-rw-r--r--
prctl.h	1.03 KB	-rw-r--r--
procfs.h	4.24 KB	-rw-r--r--
profil.h	1.91 KB	-rw-r--r--
ptrace.h	5.98 KB	-rw-r--r--
queue.h	19.08 KB	-rw-r--r--
quota.h	5.05 KB	-rw-r--r--
random.h	1.41 KB	-rw-r--r--
raw.h	1.15 KB	-rw-r--r--
reboot.h	1.59 KB	-rw-r--r--
reg.h	1.78 KB	-rw-r--r--
resource.h	3.56 KB	-rw-r--r--
select.h	4.04 KB	-rw-r--r--
sem.h	1.99 KB	-rw-r--r--
sendfile.h	1.76 KB	-rw-r--r--
shm.h	1.83 KB	-rw-r--r--
signal.h	20 B	-rw-r--r--
signalfd.h	1.67 KB	-rw-r--r--
socket.h	9.97 KB	-rw-r--r--
socketvar.h	141 B	-rw-r--r--
soundcard.h	29 B	-rw-r--r--
stat.h	15.86 KB	-rw-r--r--
statfs.h	2.04 KB	-rw-r--r--
statvfs.h	2.75 KB	-rw-r--r--
swap.h	1.56 KB	-rw-r--r--
syscall.h	1.23 KB	-rw-r--r--
sysctl.h	2.06 KB	-rw-r--r--
sysinfo.h	1.48 KB	-rw-r--r--
syslog.h	7.52 KB	-rw-r--r--
sysmacros.h	2.05 KB	-rw-r--r--
termios.h	74 B	-rw-r--r--
time.h	6.6 KB	-rw-r--r--
timeb.h	1.39 KB	-rw-r--r--
timerfd.h	1.83 KB	-rw-r--r--
times.h	1.56 KB	-rw-r--r--
timex.h	2.15 KB	-rw-r--r--
ttychars.h	2.44 KB	-rw-r--r--
ttydefaults.h	3.48 KB	-rw-r--r--
types.h	5.58 KB	-rw-r--r--
ucontext.h	5.71 KB	-rw-r--r--
uio.h	6.13 KB	-rw-r--r--
un.h	1.42 KB	-rw-r--r--
unistd.h	20 B	-rw-r--r--
user.h	5.09 KB	-rw-r--r--
utsname.h	2.42 KB	-rw-r--r--
vfs.h	161 B	-rw-r--r--
vlimit.h	1.84 KB	-rw-r--r--
vm86.h	1.17 KB	-rw-r--r--
vt.h	22 B	-rw-r--r--
vtimes.h	2.41 KB	-rw-r--r--
wait.h	5.19 KB	-rw-r--r--
xattr.h	4.17 KB	-rw-r--r--

Code Editor : io.h

/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef	_SYS_IO_H
#define	_SYS_IO_H	1

#include <features.h>

__BEGIN_DECLS

/* If TURN_ON is TRUE, request for permission to do direct i/o on the
   port numbers in the range [FROM,FROM+NUM-1].  Otherwise, turn I/O
   permission off for that range.  This call requires root privileges.

Portability note: not all Linux platforms support this call.  Most
   platforms based on the PC I/O architecture probably will, however.
   E.g., Linux/Alpha for Alpha PCs supports this.  */
extern int ioperm (unsigned long int __from, unsigned long int __num,
                   int __turn_on) __THROW;

/* Set the I/O privilege level to LEVEL.  If LEVEL>3, permission to
   access any I/O port is granted.  This call requires root
   privileges. */
extern int iopl (int __level) __THROW;

#if defined __GNUC__ && __GNUC__ >= 2

static __inline unsigned char
inb (unsigned short int __port)
{
  unsigned char _v;

__asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline unsigned char
inb_p (unsigned short int __port)
{
  unsigned char _v;

__asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline unsigned short int
inw (unsigned short int __port)
{
  unsigned short _v;

__asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline unsigned short int
inw_p (unsigned short int __port)
{
  unsigned short int _v;

__asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline unsigned int
inl (unsigned short int __port)
{
  unsigned int _v;

__asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline unsigned int
inl_p (unsigned short int __port)
{
  unsigned int _v;
  __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (__port));
  return _v;
}

static __inline void
outb (unsigned char __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outb %b0,%w1": :"a" (__value), "Nd" (__port));
}

static __inline void
outb_p (unsigned char __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (__value),
			"Nd" (__port));
}

static __inline void
outw (unsigned short int __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outw %w0,%w1": :"a" (__value), "Nd" (__port));

}

static __inline void
outw_p (unsigned short int __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (__value),
			"Nd" (__port));
}

static __inline void
outl (unsigned int __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outl %0,%w1": :"a" (__value), "Nd" (__port));
}

static __inline void
outl_p (unsigned int __value, unsigned short int __port)
{
  __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (__value),
			"Nd" (__port));
}

static __inline void
insb (unsigned short int __port, void *__addr, unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; insb":"=D" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

static __inline void
insw (unsigned short int __port, void *__addr, unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; insw":"=D" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

static __inline void
insl (unsigned short int __port, void *__addr, unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; insl":"=D" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

static __inline void
outsb (unsigned short int __port, const void *__addr,
       unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

static __inline void
outsw (unsigned short int __port, const void *__addr,
       unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

static __inline void
outsl (unsigned short int __port, const void *__addr,
       unsigned long int __count)
{
  __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (__addr), "=c" (__count)
			:"d" (__port), "0" (__addr), "1" (__count));
}

#endif	/* GNU C */

__END_DECLS
#endif /* _SYS_IO_H */

${this.title}

Code Editor : io.h