The USB keyboard driver will be implemented when the virtual keyboard driver is combined with the process to deal with USB keyboard's I/O operation.
将对USB键盘进行输入输出的过程和虚拟键盘驱动程序相结合，就实现了一个真正的USB键盘驱动程序。
At the same time, because the USB keyboard is a HID class device, when the driver is embedded into the operating system, the HID class driver ought to be programmed.
同时由于US B键盘是HID类设备，要把此驱动程序嵌入到操作系统中去，还需要编写HID类驱动程序。
At the same time, because the USB keyboard is a HID class device, when the driver is embedded into the operating system, the HID class driver ought to be programmed.
同时由于US B键盘是HID类设备，要把此驱动程序嵌入到操作系统中去，还需要编写HID类驱动程序。
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