Developers write code to access the device through its APIs, but some APIs are not yet available, such as a compass API, a video API, or a sockets API.
开发人员编写代码来通过API访问设备，但是一些API目前不可用，比如一个指针api、一个视频API或一个套接字api。
These front-end and back-end drivers are where virtio comes in, providing a standardized interface for the development of emulated device access to propagate code reuse and increase efficiency.
通过在这些前端和后端驱动程序中的virtio，为开发模拟设备提供标准化接口，从而增加代码的跨平台重用率并提高效率。
The main part is about how to use ioctl to get access to the particular device and the information we want. The original Windows code is shown in Listing 6
移植的主要部分是如何使用ioctl访问特定设备和获取需要的信息。
The main part is about how to use ioctl to get access to the particular device and the information we want. The original Windows code is shown in Listing 6
移植的主要部分是如何使用ioctl访问特定设备和获取需要的信息。
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