Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 6, characters, device drivers. In Linux device driver, character device driver is the foundation. This chapter covers Linux characters of a device driver structure and main component of the programming method. Section 6.1 explained the key character device driver Linux data structure cdev and file_operations structure of the body, and analyses the operating methods Linux character the overall structure of the equipment are given, and the design of simple design template. Section 6.2 explained this chapter and subsequent chapters, based on globalmem virtual character device, chapter 6 ~ 9 will be based on the virtual device character device driver and examples such as the concurrent control knowledge s explanation. Section 6.3 basis of the knowledge of the section 6.1 of the equipment driver writers explain globalmem method of reading and writing le

第6章、字符设备驱动.pdf

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