Module ioctl

Unsafe ioctl API.

Unix systems expose a number of ioctl’s. ioctls have been adopted as a general purpose system call for making calls into the kernel. In addition to the wide variety of system calls that are included by default in the kernel, many drivers expose their own ioctl’s for controlling their behavior, some of which are proprietary. Therefore it is impossible to make a safe interface for every ioctl call, as they all have wildly varying semantics.

This module provides an unsafe interface to write your own ioctl API. To start, create a type that implements Ioctl. Then, pass it to ioctl to make the ioctl call.

Structs

BadOpcode

Provides a bad opcode at compile time.

Getter

Implements the traditional “getter” pattern for ioctls.

IntegerSetter

Implements an ioctl that passes an integer into the ioctl.

NoArg

Implements an ioctl with no real arguments.

NoneOpcode

Provides a None code at compile time.

Opcode

The opcode used by an Ioctl.

ReadOpcode

Provides a read code at compile time.

ReadWriteOpcode

Provides a read/write code at compile time.

Setter

Implements the pattern for ioctls where a pointer argument is given to the ioctl.

Updater

Implements an “updater” pattern for ioctls.

WriteOpcode

Provides a write code at compile time.

Enums

Direction

The direction that an ioctl is going.

Traits

CompileTimeOpcode

Trait for something that provides an ioctl opcode at compile time.

Ioctl

A trait defining the properties of an ioctl command.

Functions

ioctl^⚠

Perform an ioctl call.

Type Aliases

IoctlOutput

The type used by the ioctl to signify the output.

RawOpcode

The type used by the ioctl to signify the command.