协议层下面是另外一个无关接口层，它将协议与具有很多各种不同功能的硬件设备连接在一起。

Below the protocols layer is another agnostic interface layer that connects protocols to a variety of hardware device drivers with varying capabilities.

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然后是另外一个协议无关层，提供了与各个设备驱动程序通信的通用接口，最下面是设备驱动程序本身。

Next is another agnostic layer that permits a common interface to and from the individual device drivers that are available, followed at the end by the individual device drivers themselves.

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最近，内核中引入了一种新的应用程序编程接口（NAPI），该接口允许驱动程序与设备无关层（dev）进行交互。

Recently, a new application program interface (NAPI) was introduced into the kernel to allow drivers to interface with the device agnostic layer (dev).

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