《Essential Linux Device Drivers》前言（中英文）
作者 佚名技术
来源 Linux系统
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发布时间 2012-05-16
| ode. The book assumes that you have downloaded Linux on your system, poked through the kernel sources, and at least skimmed through some related documentation. And you should be pretty good in C. Summary of Chapters The first four chapters prepare you to digest the rest of the book. The next sixteen chapters discuss drivers for different device families. A chapter that describes device driver debugging techniques comes next. The penultimate chapter provides perspective on maintenance and delivery. We will shut down by walking through a checklist that summarizes how to set forth on your way to Linux-enablement when you get hold of a new device.Chapter 1, “Introduction”, starts our tryst with Linux. It hurries you through downloading the kernel sources, making trivial code changes, and building a bootable kernel image. Chapter 2, “A Peek Inside the Kernel”, takes a brisk look into the innards of the Linux kernel and teaches you some must-know kernel concepts. It first takes you through the boot process and then describes kernel services particularly relevant to driver development such as kernel timers, concurrency management, and memory allocation. Chapter 3, “Kernel Facilities”, examines several kernel services that are useful components in the tool box of driver developers. The chapter starts by looking at kernel threads, which is a way to implement background tasks inside the kernel. It then moves on to helper interfaces such as linked lists, work queues, completion functions, and notifier chains. These helper facilities simplify your code, weed out redundancies from the kernel, and help long-term maintenance. Chapter 4, “Laying the Groundwork”, builds the foundation for mastering the art of writing Linux device drivers. It introduces devices and drivers by giving you a bird''s eye view of the architecture of a typical PC-compatible system and an embedded device. It then looks at basic driver concepts such as interrupt handling and the kernel’s device model. Chapter 5, “Character Drivers”, looks at the architecture of character device drivers. Several concepts introduced in this chapter such as polling, asynchronous notification, and I/O control, are relevant to subsequent chapters as well, since many device classes discussed in the rest of the book are ‘super’ character devices. Chapter 6, “Serial Drivers”, explains the kernel layer that handles serial devices. Chapter 7, “Input Drivers”, discusses the kernel’s input subsystem that is responsible for servicing devices such as keyboards, mice, and touch screen controllers. Chapter 8, “The Inter-Integrated Circuit Protocol”, dissects drivers for devices such as EEPROMs that are connected to a system’s I2C bus or SMBus. This chapter also looks at other serial interfaces such as SPI bus and 1-wire bus. Chapter 9, “PCMCIA and Compact Flash”, delves into the PCMCIA subsystem. It teaches you to write drivers for devices having a PCMCIA or Compact Flash form factor. |
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