Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 9, Linux device driver of asynchronous notification and asynchronous I/O. In the device driver can make use of asynchronous notification of the equipment can be conducted, the visit to notify the application driven visit. So, use no block I/O application without access to the equipment is polling, and block access can be similar to "break" replaced the asynchronous notification. Section 9.1 explained asynchronous notification of the concept and function, section 9.2 explained Linux asynchronous notification of the programming method, section 9.3 explained the increase of asynchronous notification globalfifo drive and in user space validation.

第9章、Linux设备驱动中的异步通知与异步IO.pdf

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