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Name	Size	Permission
a.out.h	1.99 KB	-rw-r--r--
auxvec.h	774 B	-rw-r--r--
bitsperlong.h	237 B	-rw-r--r--
bpf_perf_event.h	40 B	-rw-r--r--
byteorder.h	194 B	-rw-r--r--
compiler.h	3.6 KB	-rw-r--r--
console.h	1.14 KB	-rw-r--r--
errno.h	5.31 KB	-rw-r--r--
fcntl.h	1.86 KB	-rw-r--r--
fpu.h	4.51 KB	-rw-r--r--
gentrap.h	1.43 KB	-rw-r--r--
ioctl.h	2.3 KB	-rw-r--r--
ioctls.h	4.44 KB	-rw-r--r--
ipcbuf.h	32 B	-rw-r--r--
mman.h	3.81 KB	-rw-r--r--
msgbuf.h	32 B	-rw-r--r--
pal.h	1020 B	-rw-r--r--
param.h	298 B	-rw-r--r--
poll.h	30 B	-rw-r--r--
posix_types.h	513 B	-rw-r--r--
ptrace.h	1.72 KB	-rw-r--r--
reg.h	1005 B	-rw-r--r--
regdef.h	1.04 KB	-rw-r--r--
resource.h	761 B	-rw-r--r--
sembuf.h	32 B	-rw-r--r--
setup.h	172 B	-rw-r--r--
shmbuf.h	32 B	-rw-r--r--
sigcontext.h	891 B	-rw-r--r--
siginfo.h	155 B	-rw-r--r--
signal.h	2.43 KB	-rw-r--r--
socket.h	4.07 KB	-rw-r--r--
sockios.h	505 B	-rw-r--r--
stat.h	1.05 KB	-rw-r--r--
statfs.h	314 B	-rw-r--r--
swab.h	1.21 KB	-rw-r--r--
sysinfo.h	775 B	-rw-r--r--
termbits.h	4.14 KB	-rw-r--r--
termios.h	1.48 KB	-rw-r--r--
types.h	869 B	-rw-r--r--
unistd.h	501 B	-rw-r--r--
unistd_32.h	13.35 KB	-rw-r--r--

Code Editor : ioctl.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ALPHA_IOCTL_H
#define _ALPHA_IOCTL_H

/*
 * The original linux ioctl numbering scheme was just a general
 * "anything goes" setup, where more or less random numbers were
 * assigned.  Sorry, I was clueless when I started out on this.
 *
 * On the alpha, we'll try to clean it up a bit, using a more sane
 * ioctl numbering, and also trying to be compatible with OSF/1 in
 * the process. I'd like to clean it up for the i386 as well, but
 * it's so painful recognizing both the new and the old numbers..
 */

#define _IOC_NRBITS	8
#define _IOC_TYPEBITS	8
#define _IOC_SIZEBITS	13
#define _IOC_DIRBITS	3

#define _IOC_NRMASK	((1 << _IOC_NRBITS)-1)
#define _IOC_TYPEMASK	((1 << _IOC_TYPEBITS)-1)
#define _IOC_SIZEMASK	((1 << _IOC_SIZEBITS)-1)
#define _IOC_DIRMASK	((1 << _IOC_DIRBITS)-1)

#define _IOC_NRSHIFT	0
#define _IOC_TYPESHIFT	(_IOC_NRSHIFT+_IOC_NRBITS)
#define _IOC_SIZESHIFT	(_IOC_TYPESHIFT+_IOC_TYPEBITS)
#define _IOC_DIRSHIFT	(_IOC_SIZESHIFT+_IOC_SIZEBITS)

/*
 * Direction bits _IOC_NONE could be 0, but OSF/1 gives it a bit.
 * And this turns out useful to catch old ioctl numbers in header
 * files for us.
 */
#define _IOC_NONE	1U
#define _IOC_READ	2U
#define _IOC_WRITE	4U

#define _IOC(dir,type,nr,size)			\
	((unsigned int)				\
	 (((dir)  << _IOC_DIRSHIFT) |		\
	  ((type) << _IOC_TYPESHIFT) |		\
	  ((nr)   << _IOC_NRSHIFT) |		\
	  ((size) << _IOC_SIZESHIFT)))

/* used to create numbers */
#define _IO(type,nr)		_IOC(_IOC_NONE,(type),(nr),0)
#define _IOR(type,nr,size)	_IOC(_IOC_READ,(type),(nr),sizeof(size))
#define _IOW(type,nr,size)	_IOC(_IOC_WRITE,(type),(nr),sizeof(size))
#define _IOWR(type,nr,size)	_IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))

/* used to decode them.. */
#define _IOC_DIR(nr)		(((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
#define _IOC_TYPE(nr)		(((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
#define _IOC_NR(nr)		(((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
#define _IOC_SIZE(nr)		(((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)

/* ...and for the drivers/sound files... */

#define IOC_IN		(_IOC_WRITE << _IOC_DIRSHIFT)
#define IOC_OUT		(_IOC_READ << _IOC_DIRSHIFT)
#define IOC_INOUT	((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
#define IOCSIZE_MASK	(_IOC_SIZEMASK << _IOC_SIZESHIFT)
#define IOCSIZE_SHIFT	(_IOC_SIZESHIFT)

#endif /* _ALPHA_IOCTL_H */

${this.title}

Code Editor : ioctl.h