Книга: Microsoft Windows Embedded CE 6.0 Exam Preparation Kit

Lesson Summary

Lesson Summary

Windows Embedded CE supports native and stream drivers. Native drivers are the best choice for any devices that are not stream devices. For example, a display device driver must be able to process data in arbitrary patterns and is therefore a good candidate for a native driver. Other devices, such as storage hardware and serial ports, are good candidates for stream drivers because these devices handle data primarily in the form of ordered streams of bytes as if they were files. Both native and stream drivers can use either the monolithic or layered driver design. In general, it is advantageous to use the layered architecture based on MDD and PDD because it facilitates code reuse and the development of driver updates. Monolithic drivers might be the right choice if you want to avoid the additional function calls between MDD and PDD for performance reasons.

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