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✏️ /usr/src/linux-headers-6.8.0-124/arch/alpha/include/uapi/asm/ioctl.h

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/* 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 */

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Nama	Tipe	Ukuran	Diubah	Perm	Aksi
📄 Kbuild	file	62 B	10/03/24 20:38	0644	✏️ ⬇
📄 a.out.h	h	2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 auxvec.h	h	774 B	10/03/24 20:38	0644	✏️ ⬇
📄 bitsperlong.h	h	237 B	10/03/24 20:38	0644	✏️ ⬇
📄 byteorder.h	h	194 B	10/03/24 20:38	0644	✏️ ⬇
📄 compiler.h	h	4.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 console.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 errno.h	h	5.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 fcntl.h	h	1.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 fpu.h	h	4.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 gentrap.h	h	1.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 ioctl.h	h	2.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 ioctls.h	h	4.4 KB	26/05/26 09:55	0644	✏️ ⬇
📄 mman.h	h	3.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pal.h	h	1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 param.h	h	313 B	10/03/24 20:38	0644	✏️ ⬇
📄 posix_types.h	h	513 B	10/03/24 20:38	0644	✏️ ⬇
📄 ptrace.h	h	1.8 KB	26/05/26 09:55	0644	✏️ ⬇
📄 reg.h	h	1005 B	10/03/24 20:38	0644	✏️ ⬇
📄 regdef.h	h	1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 resource.h	h	761 B	10/03/24 20:38	0644	✏️ ⬇
📄 setup.h	h	187 B	10/03/24 20:38	0644	✏️ ⬇
📄 sigcontext.h	h	891 B	10/03/24 20:38	0644	✏️ ⬇
📄 siginfo.h	h	155 B	10/03/24 20:38	0644	✏️ ⬇
📄 signal.h	h	2.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 socket.h	h	3.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 sockios.h	h	505 B	10/03/24 20:38	0644	✏️ ⬇
📄 stat.h	h	1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 statfs.h	h	314 B	10/03/24 20:38	0644	✏️ ⬇
📄 swab.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 sysinfo.h	h	775 B	10/03/24 20:38	0644	✏️ ⬇
📄 termbits.h	h	4.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 termios.h	h	1.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 types.h	h	884 B	10/03/24 20:38	0644	✏️ ⬇
📄 unistd.h	h	516 B	10/03/24 20:38	0644	✏️ ⬇

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