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.