You're reading from Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization Create user-kernel interfaces, work with peripheral I/O, and handle hardware interrupts

Product type Paperback

Published in Mar 2021

Publisher Packt

ISBN-13 9781801079518

Length 452 pages

Edition 1st Edition

Tools

Linux

Concepts

System Administration

Author (1):

Kaiwan N. Billimoria

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Table of Contents (11) Chapters

Preface

1. Section 1: Character Device Driver Basics

2. Writing a Simple misc Character Device Driver FREE CHAPTER

3. User-Kernel Communication Pathways

4. Working with Hardware I/O Memory

5. Handling Hardware Interrupts

6. Working with Kernel Timers, Threads, and Workqueues

7. Section 2: Delving Deeper

8. Kernel Synchronization - Part 1

9. Kernel Synchronization - Part 2

10. Other Books You May Enjoy

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Using procfs to interface with the user space

As a kernel module or device driver developer, we can actually create our own entries under /proc, leveraging this as a simple interface to the user space. How can we do this? The kernel provides APIs that create directories and files under procfs. We will learn how to use them in this section.

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Authors (1)

Kaiwan N. Billimoria

Kaiwan N. Billimoria taught himself BASIC programming on his dad's IBM PC back in 1983. He was programming in C and Assembly on DOS until he discovered the joys of Unix, and by around 1997, Linux! Kaiwan has worked on many aspects of the Linux system programming stack, including Bash scripting, system programming in C, kernel internals, device drivers, and embedded Linux work. He has actively worked on several commercial/FOSS projects. His contributions include drivers to the mainline Linux OS and many smaller projects hosted on GitHub. His Linux passion feeds well into his passion for teaching these topics to engineers, which he has done for well over two decades now. He's also the author of Hands-On System Programming with Linux, Linux Kernel Programming (and its Part 2 book) and Linux Kernel Debugging. It doesn't hurt that he is a recreational ultrarunner too.

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