The virtio_driver structure defines the upper-level device driver, list of device IDs that the driver supports, a features table (dependent upon the device type), and a list of callback functions.

virtio_driver结构定义上层设备驱动程序、驱动程序支持的设备ID的列表、一个特性表单（取决于设备类型）和一个回调函数列表。

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The virtio_driver structure defines the upper-level device driver, list of device IDs that the driver supports, a features table (dependent upon the device type), and a list of callback functions.

virtio_driver结构定义上层设备驱动程序、驱动程序支持的设备ID的列表、一个特性表单（取决于设备类型）和一个回调函数列表。

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