USB function: 能够通过总线传输或接收数据或控制信息的设备,在USB2.0标准中,别成为Clas。
主要有以下三类:
A human interface device such as a mouse, keyboard, tablet, or game controller
An imaging device such as a scanner, printer, or camera
A mass storage device such as a CD-ROM drive, floppy drive, or DVD drive
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