Introduction - If you have any usage issues, please Google them yourself
Linux system, device drivers the operating system kernel are an important component of the hardware device with a standard set up between the abstract interface. Through this interface, users can deal with, like ordinary paper, the hardware device to open (open), turn off (close), to read and write (read/write) operation, etc.. Through the analysis and design of device drivers, you can-depth understanding of Linux systems and systems development. In this paper, a simple example to illustrate the design of device drivers.