Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization: Create user-kernel interfaces, work with peripheral I/O, and handle

Billimoria, Kaiwan N.

  • 出版商: Packt Publishing
  • 出版日期: 2021-03-19
  • 售價: $1,500
  • 貴賓價: 9.5$1,425
  • 語言: 英文
  • 頁數: 452
  • 裝訂: Quality Paper - also called trade paper
  • ISBN: 180107951X
  • ISBN-13: 9781801079518
  • 相關分類: Linux
  • 立即出貨 (庫存 < 4)

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商品描述

Discover how to write high-quality character driver code, interface with userspace, work with chip memory, and gain an in-depth understanding of working with hardware interrupts and kernel synchronization


Key Features:

  • Delve into hardware interrupt handling, threaded IRQs, tasklets, softirqs, and understand which to use when
  • Explore powerful techniques to perform user-kernel interfacing, peripheral I/O and use kernel mechanisms
  • Work with key kernel synchronization primitives to solve kernel concurrency issues


Book Description:

Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization is an ideal companion guide to the Linux Kernel Programming book. This book provides a comprehensive introduction for those new to Linux device driver development and will have you up and running with writing misc class character device driver code (on the 5.4 LTS Linux kernel) in next to no time.


You'll begin by learning how to write a simple and complete misc class character driver before interfacing your driver with user-mode processes via procfs, sysfs, debugfs, netlink sockets, and ioctl. You'll then find out how to work with hardware I/O memory. The book covers working with hardware interrupts in depth and helps you understand interrupt request (IRQ) allocation, threaded IRQ handlers, tasklets, and softirqs. You'll also explore the practical usage of useful kernel mechanisms, setting up delays, timers, kernel threads, and workqueues. Finally, you'll discover how to deal with the complexity of kernel synchronization with locking technologies (mutexes, spinlocks, and atomic/refcount operators), including more advanced topics such as cache effects, a primer on lock-free techniques, deadlock avoidance (with lockdep), and kernel lock debugging techniques.


By the end of this Linux kernel book, you'll have learned the fundamentals of writing Linux character device driver code for real-world projects and products.


What You Will Learn:

  • Get to grips with the basics of the modern Linux Device Model (LDM)
  • Write a simple yet complete misc class character device driver
  • Perform user-kernel interfacing using popular methods
  • Understand and handle hardware interrupts confidently
  • Perform I/O on peripheral hardware chip memory
  • Explore kernel APIs to work with delays, timers, kthreads, and workqueues
  • Understand kernel concurrency issues
  • Work with key kernel synchronization primitives and discover how to detect and avoid deadlock


Who this book is for:

An understanding of the topics covered in the Linux Kernel Programming book is highly recommended to make the most of this book. This book is for Linux programmers beginning to find their way with device driver development. Linux device driver developers looking to overcome frequent and common kernel/driver development issues, as well as perform common driver tasks such as user-kernel interfaces, performing peripheral I/O, handling hardware interrupts, and dealing with concurrency will benefit from this book. A basic understanding of Linux kernel internals (and common APIs), kernel module development, and C programming is required.

商品描述(中文翻譯)

探索如何撰寫高品質的字符驅動程式代碼,與使用者空間進行介面互動,處理晶片記憶體,並深入了解與硬體中斷和核心同步的工作方式。

主要特點:
- 深入研究硬體中斷處理、線程中斷、tasklet、softirq,並了解何時使用哪種方法。
- 探索強大的技術,執行使用者與核心的介面互動、外設輸入/輸出,並使用核心機制。
- 使用關鍵核心同步原語解決核心並發問題。

書籍描述:
《Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization》是《Linux Kernel Programming》的理想伴侶指南。本書為那些剛接觸Linux設備驅動程式開發的人提供了全面的介紹,並將讓您在短時間內(在5.4 LTS Linux核心上)開始撰寫misc類字符設備驅動程式代碼。

您將首先學習如何撰寫一個簡單而完整的misc類字符驅動程式,然後通過procfs、sysfs、debugfs、netlink sockets和ioctl將您的驅動程式與使用者模式進程進行介面互動。接下來,您將了解如何處理硬體I/O記憶體。本書詳細介紹了硬體中斷的工作方式,並幫助您了解中斷請求(IRQ)分配、線程中斷處理程序、tasklet和softirq。您還將探索有用的核心機制的實際用法,設置延遲、計時器、核心線程和工作隊列。最後,您將了解如何處理核心同步的複雜性,包括鎖定技術(互斥鎖、自旋鎖和原子/引用計數運算符),以及更高級的主題,如緩存效應、無鎖技術入門、死結避免(使用lockdep)和核心鎖定調試技術。

通過閱讀本書,您將學習撰寫Linux字符設備驅動程式代碼的基礎,以應用於實際項目和產品。

學到什麼:
- 熟悉現代Linux設備模型(LDM)的基礎知識。
- 撰寫一個簡單而完整的misc類字符設備驅動程式。
- 使用常用方法進行使用者與核心的介面互動。
- 自信地處理硬體中斷。
- 在外設硬體晶片記憶體上進行I/O。
- 探索核心API,使用延遲、計時器、核心線程和工作隊列。
- 理解核心並發問題。
- 使用關鍵核心同步原語,並了解如何檢測和避免死結。

適合對象:
- 強烈建議熟悉《Linux Kernel Programming》中所涵蓋的主題,以充分利用本書。
- 本書適合剛開始進行設備驅動程式開發的Linux程式設計師。
- Linux設備驅動程式開發人員希望克服常見的核心/驅動程式開發問題,並執行常見的驅動程式任務,如使用者與核心介面、外設I/O、處理硬體中斷和處理並發問題。
- 需要基本了解Linux核心內部(和常用API)、核心模組開發和C編程。