说明：  这本书最初是为北京亚嵌教育研究中心的嵌入式Linux系统工程师就业班课程量身定做的教材之一。该课程是为期四个月的全日制职业培训，要求学员毕业时具备非常Solid的C编程能力，能熟练地使用Linux系统，同时对计算机体系结构与指令集、操作系统原理和设备驱动程序都有较深入的了解。
(This book was originally one of the textbooks tailored for the Embedded Linux System Engineers course at the Beijing Institute of Embedded Education Research. The course is for a period of four Full-time vocational training for the month, requiring students to have very solid C programming skills when they graduate, skilled use of Linux systems, and computer architectureHave a deeper understanding of the instruction set, operating system principles and device drivers.)