Driver Design Strategies
Like most software, drivers benefit from an organized approach to development. This section gives some guidelines that may help shorten development time.
Use Formal Design Methods
Traditionally, writing a device driver implied a license to code without a design strategy. In the haste to test brand new hardware, the unit test code became the basis for the ultimate driver. Perhaps, too, many device drivers were written by programmers unfamiliar with the operating system. The first driver written is really a journey of discovery as the driver author learns the overall I/O architecture of the system.
Fortunately (or perhaps sadly, depending on one's perspective), the days of software cowboys are over. Between complicated ...
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