但是分层的驱动程序并不是必须的而且在可能在有些驱动上面并不适用。

The layered driver style is not required and may not be appropriate for all drivers.

youdao

使用分层的驱动程序，微软提供了很多公用MDD代码，开发者只需要编写与自己平台有区别的地方。

When using a layered driver, you can reuse the common MDD code provided by Microsoft, and only write new PDD code that is specific to the your hardware.

youdao

本文介绍了NDIS驱动程序结构，给出NDIS中间驱动程序实现网络数据包的拦截方法；并实现了一个基于规则的过滤算法，在过滤算法中引入了一个分层框架。

Network data packets are captured by NDIS Intermediate driver; A rule-based filtering algorithm is presented in this paper, and a layered filtering framework is included in the algorithm.

youdao