IOCTL in Linux Device Drivers Explained | Safe Kernel-User Space Communication Tutorial

Published: 05 March 2026
on channel: SystemDR - Scalable System Design

Website Link: https://systemdrd.com/
Want to understand how Linux device drivers communicate with user applications? This tutorial explains IOCTL (Input Output Control) in Linux and shows how to implement a secure IOCTL interface inside a kernel module.

We break down the architecture of kernel space vs user space communication, demonstrate how to define custom IOCTL commands, and implement robust handlers inside a Linux kernel module. You'll see real examples of device driver programming, kernel debugging, and memory safety practices used in professional Linux development.

By the end of this video, you will understand secure data exchange using copy_to_user and copy_from_user, error handling, and how to design safe kernel APIs for user-space programs. This is ideal for developers exploring Linux internals, operating system programming, and advanced systems development.

#linuxdevicedriver #ioctltutorial #linuxkernelprogramming #kernelmodule #systemprogramming

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