Mastering Linux Device Driver Development

By John Madieu
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  1. Section 1:Kernel Core Frameworks for Embedded Device Driver Development

About this book

Linux is one of the fastest-growing operating systems around the world, and in the last few years, the Linux kernel has evolved significantly to support a wide variety of embedded devices with its improved subsystems and a range of new features. With this book, you’ll find out how you can enhance your skills to write custom device drivers for your Linux operating system.

Mastering Linux Device Driver Development provides complete coverage of kernel topics, including video and audio frameworks, that usually go unaddressed. You’ll work with some of the most complex and impactful Linux kernel frameworks, such as PCI, ALSA for SoC, and Video4Linux2, and discover expert tips and best practices along the way. In addition to this, you’ll understand how to make the most of frameworks such as NVMEM and Watchdog. Once you’ve got to grips with Linux kernel helpers, you’ll advance to working with special device types such as Multi-Function Devices (MFD) followed by video and audio device drivers.

By the end of this book, you’ll be able to write feature-rich device drivers and integrate them with some of the most complex Linux kernel frameworks, including V4L2 and ALSA for SoC.

Publication date:
January 2021
Publisher
Packt
Pages
646
ISBN
9781789342048

 

Section 1:Kernel Core Frameworks for Embedded Device Driver Development

This section deals with the Linux kernel core, introducing the abstraction layers and facilities that the Linux kernel offers, in order to reduce the development efforts. Moreover, in this section we will learn about the Linux clock framework, thanks to which most peripherals on the system are driven.

This section contains the following chapters:

  • Chapter 1, Linux Kernel Concepts for Embedded Developers
  • Chapter 2, Leveraging the Regmap API and Simplifying the Code
  • Chapter 3, Delving into the MFD Subsystem and the Syscon API
  • Chapter 4, Storming the Common Clock Framework

About the Author

  • John Madieu

    John Madieu is an embedded Linux and kernel engineer living in France, in Paris. His main activities consist of developing drivers and Board Support Packages (BSP) for companies in domains such as automation, transport, healthcare, energy, and the military. John works at EXPEMB, a French company that is a pioneer in electronical board design based on computer-on-module, and in embedded Linux solutions. He is an open source and embedded systems enthusiast, convinced that it is only by sharing knowledge that one learns more. He is passionate about boxing, which he practised for 6 years professionally, and continues to transmit this passion through sessions of training that he provides voluntarily.

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