ioctl

Documentation

Index

• Constants
• func IO(t, nr uintptr) uintptr
• func IOC(dir, t, nr, size uintptr) uintptr
• func IOCTL(fd, name, data uintptr) error
• func IOR(t, nr, size uintptr) uintptr
• func IOW(t, nr, size uintptr) uintptr
• func IOWR(t, nr, size uintptr) uintptr

Constants

const (
	IOC_NONE  = 0x0
	IOC_WRITE = 0x1
	IOC_READ  = 0x2

	IOC_NRBITS   = 8
	IOC_TYPEBITS = 8

	IOC_SIZEBITS = 14
	IOC_DIRBITS  = 2

	IOC_NRSHIFT   = 0
	IOC_TYPESHIFT = IOC_NRSHIFT + IOC_NRBITS
	IOC_SIZESHIFT = IOC_TYPESHIFT + IOC_TYPEBITS
	IOC_DIRSHIFT  = IOC_SIZESHIFT + IOC_SIZEBITS

	IOC_NRMASK   = ((1 << IOC_NRBITS) - 1)
	IOC_TYPEMASK = ((1 << IOC_TYPEBITS) - 1)
	IOC_SIZEMASK = ((1 << IOC_SIZEBITS) - 1)
	IOC_DIRMASK  = ((1 << IOC_DIRBITS) - 1)
)

Generic ioctl constants

const (
	IOC_IN        = IOC_WRITE << IOC_DIRSHIFT
	IOC_OUT       = IOC_READ << IOC_DIRSHIFT
	IOC_INOUT     = (IOC_WRITE | IOC_READ) << IOC_DIRSHIFT
	IOCSIZE_MASK  = IOC_SIZEMASK << IOC_SIZESHIFT
	IOCSIZE_SHIFT = IOC_SIZESHIFT
)

Some useful additional ioctl constanst

Functions

func IO

func IO(t, nr uintptr) uintptr

IO generate IO

func IOC

func IOC(dir, t, nr, size uintptr) uintptr

IOC generate IOC

func IOCTL

func IOCTL(fd, name, data uintptr) error

IOCTL send ioctl

func IOR

func IOR(t, nr, size uintptr) uintptr

IOR generate IOR

func IOW

func IOW(t, nr, size uintptr) uintptr

IOW generate IOW

func IOWR

func IOWR(t, nr, size uintptr) uintptr

IOWR generate IOWR