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You're reading from Linux Device Drivers Development Develop customized drivers for embedded Linux

Product type Paperback

Published in Oct 2017

Publisher Packt

ISBN-13 9781785280009

Length 586 pages

Edition 1st Edition

Languages

Tools

Linux

Concepts

System Administration

Author (1):

John Madieu

View More author details

Table of Contents (23) Chapters

Preface

1. Introduction to Kernel Development FREE CHAPTER

2. Device Driver Basis

3. Kernel Facilities and Helper Functions

4. Character Device Drivers

5. Platform Device Drivers

6. The Concept of Device Tree

7. I2C Client Drivers

8. SPI Device Drivers

9. Regmap API – A Register Map Abstraction

10. IIO Framework

11. Kernel Memory Management

12. DMA – Direct Memory Access

13. The Linux Device Model

14. Pin Control and GPIO Subsystem

15. GPIO Controller Drivers – gpio_chip

16. Advanced IRQ Management

17. Input Devices Drivers

18. RTC Drivers

19. PWM Drivers

20. Regulator Framework

21. Framebuffer Drivers

22. Network Interface Card Drivers

Summary

Dealing with a GPIO from within the kernel is an easy task, as shown in this chapter. Both legacy and new interfaces were discussed, giving the possibility to choose the one that fits your needs, in order to write enhanced GPIO drivers. You'll be able to handle IRQs mapped to GPIOs. The next chapter will deal with the chip that provides and exposes GPIO lines, known as the GPIO controller.

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Authors (1)

John Madieu

John Madieu is an embedded Linux and kernel engineer living in Paris, France. His main activities consist of developing device drivers and Board Support Packages (BSPs) for companies in domains such as IoT, automation, transport, healthcare, energy, and the military. John is the founder and chief consultant at LABCSMART, a company that provides training and services for embedded Linux and Linux kernel engineering. He is an open source and embedded systems enthusiast, convinced that it is only by sharing knowledge that we can learn more. He is passionate about boxing, which he practiced for 6 years professionally, and continues to channel this passion through training sessions that he provides voluntarily.

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