ioccom.h File Reference

API published in:
API deprecated in:

#include <sys/cdefs.h>


Defines
#define	IOCPARM_MASK 0x1fff
#define	IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
#define	IOCBASECMD(x) ((x) & ~(IOCPARM_MASK << 16))
#define	IOCGROUP(x) (((x) >> 8) & 0xff)
#define	IOCPARM_MAX PAGE_SIZE
#define	IOC_VOID 0x20000000
#define	IOC_OUT 0x40000000
#define	IOC_IN 0x80000000
#define	IOC_INOUT (IOC_IN\|IOC_OUT)
#define	IOC_DIRMASK 0xe0000000
#define	_IOC(inout, group, num, len) ((unsigned long)(inout \| ((len & IOCPARM_MASK) << 16) \| ((group) << 8) \| (num)))
#define	_IO(g, n) _IOC(IOC_VOID, (g), (n), 0)
#define	_IOR(g, n, t) _IOC(IOC_OUT, (g), (n), sizeof(t))
#define	_IOW(g, n, t) _IOC(IOC_IN, (g), (n), sizeof(t))
#define	_IOWR(g, n, t) _IOC(IOC_INOUT, (g), (n), sizeof(t))
Functions
__BEGIN_DECLS IMPORT_C int	ioctl (int, unsigned long,...)

Define Documentation

#define _IO	(	g,
		n		)	_IOC(IOC_VOID, (g), (n), 0)

#define _IOC	(	inout,
		group,
		num,
		len	)	((unsigned long)(inout \| ((len & IOCPARM_MASK) << 16) \| ((group) << 8) \| (num)))

#define IOC_DIRMASK 0xe0000000

#define IOC_IN 0x80000000

#define IOC_INOUT (IOC_IN|IOC_OUT)

#define IOC_OUT 0x40000000

#define IOC_VOID 0x20000000

#define IOCBASECMD

(

)

((x) & ~(IOCPARM_MASK << 16))

#define IOCGROUP

(

)

(((x) >> 8) & 0xff)

#define IOCPARM_LEN

(

)

(((x) >> 16) & IOCPARM_MASK)

#define IOCPARM_MASK 0x1fff

#define IOCPARM_MAX PAGE_SIZE

__BEGIN_DECLS IMPORT_C int ioctl	(	int	,
		unsigned	long,
			...
	)