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Mastering Linux Device Driver Development

You're reading from   Mastering Linux Device Driver Development Write custom device drivers to support computer peripherals in Linux operating systems

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Product type Paperback
Published in Jan 2021
Publisher Packt
ISBN-13 9781789342048
Length 646 pages
Edition 1st Edition
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Author (1):
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John Madieu John Madieu
Author Profile Icon John Madieu
John Madieu
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Table of Contents (19) Chapters Close

Preface 1. Section 1:Kernel Core Frameworks for Embedded Device Driver Development
2. Chapter 1: Linux Kernel Concepts for Embedded Developers FREE CHAPTER 3. Chapter 2: Leveraging the Regmap API and Simplifying the Code 4. Chapter 3: Delving into the MFD Subsystem and Syscon API 5. Chapter 4: Storming the Common Clock Framework 6. Section 2: Multimedia and Power Saving in Embedded Linux Systems
7. Chapter 5: ALSA SoC Framework – Leveraging Codec and Platform Class Drivers 8. Chapter 6: ALSA SoC Framework – Delving into the Machine Class Drivers 9. Chapter 7: Demystifying V4L2 and Video Capture Device Drivers 10. Chapter 8: Integrating with V4L2 Async and Media Controller Frameworks 11. Chapter 9:Leveraging the V4L2 API from the User Space 12. Chapter 10: Linux Kernel Power Management 13. Section 3: Staying Up to Date with Other Linux Kernel Subsystems
14. Chapter 11: Writing PCI Device Drivers 15. Chapter 12: Leveraging the NVMEM Framework 16. Chapter 13: Watchdog Device Drivers 17. Chapter 14: Linux Kernel Debugging Tips and Best Practices 18. Other Books You May Enjoy

Chapter 14: Linux Kernel Debugging Tips and Best Practices

Most of the time, as part of development, writing code is not the hardest part. Things are rendered difficult by the fact that the Linux kernel is a standalone software that is at the lowest layer of the operating system. This makes it challenging to debug the Linux kernel. However, this is compensated by the fact that the majority of the time, we don't need additional tools to debug kernel code because most of the kernel debugging tools are part of the kernel itself. We will begin by familiarizing ourselves with the Linux kernel release model and you will learn the Linux kernel release process and steps. Then, we will look at the Linux kernel debugging-related development tips (especially debugging by printing) and finally, we will focus on tracing the Linux kernel, ending with off-target debugging and learning to leverage kernel oops.

This chapter will cover the following topics:

  • Understanding the Linux kernel...
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