Developers will need to rewrite and reverify lower-level device drivers that interface to the on-chip peripheral hardware.

开发者必须重写与芯外设备连接的低端设备驱动。

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At the lowest level are the screen and input device drivers (as for the keyboard or mouse) to interact with the actual hardware.

最底层是屏幕和输入设备驱动程序(关于键盘或鼠标)来与实际硬件交互。

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This layer provides a common set of functions to be used by lower-level network device drivers to allow them to operate with the higher-level protocol stack.

这一层提供了一组通用函数供底层网络设备驱动程序使用，让它们可以对高层协议栈进行操作。

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