The link layer refers to the device drivers providing access to the physical layer, which could be numerous mediums, such as serial links or Ethernet devices.
链路层是指提供对物理层访问的设备驱动程序，这可以是各种介质，例如串口链路或以太网设备。
A method of direct Universal Serial Bus (USB) device access in virtual environment was proposed, and a model of direct device access and work flow based on QEMU were designed.
提出一种在虚拟化环境下直接访问usb设备的方法，并基于QEMU设计实现了虚拟机直接访问真实设备的系统模型及相关流程。
A method of direct Universal Serial Bus (USB) device access in virtual environment was proposed, and a model of direct device access and work flow based on QEMU were designed.
提出一种在虚拟化环境下直接访问usb设备的方法，并基于QEMU设计实现了虚拟机直接访问真实设备的系统模型及相关流程。
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