linux

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v0.12.3 Latest Latest Go to latest Published: Apr 19, 2024 License: MIT Imports: 3 Imported by: 0

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Documentation ¶

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Overview ¶

Package linux contains definitions required for making a linux ioctl.

Index ¶

Constants
func Ioctl(f *os.File, command int, dataPtr unsafe.Pointer) error

Constants ¶

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const (
	IocWrite    = 1
	IocRead     = 2
	IocNRBits   = 8
	IocTypeBits = 8
	IocSizeBits = 14
	IocDirBits  = 2

	IocNRMask    = (1 << IocNRBits) - 1
	IocTypeMask  = (1 << IocTypeBits) - 1
	IocSizeMask  = (1 << IocSizeBits) - 1
	IocDirMask   = (1 << IocDirBits) - 1
	IocTypeShift = IocNRBits
	IocSizeShift = IocTypeShift + IocTypeBits
	IocDirShift  = IocSizeShift + IocSizeBits
	IocWRBase    = (IocRead | IocWrite) << IocDirShift
)

32 bits to describe an ioctl: 0-7: NR (command for a given ioctl type) 8-15: TYPE (ioctl type) 16-29: SIZE (payload size) 30-31: DIR (direction of ioctl, can be: none/write/read/write-read)

Variables ¶

This section is empty.

Functions ¶

func Ioctl ¶

func Ioctl(f *os.File, command int, dataPtr unsafe.Pointer) error

Ioctl makes a syscall described by `command` with data `dataPtr` to device driver file `f`.

Types ¶

This section is empty.

Source Files ¶

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