https://blog.faceutil.com/2017/10/17/usb-%eb%b0%94%eb%a1%9c%ea%b0%80%ea%b8%b0-%eb%b0%94%ec%9d%b4%eb%9f%ac%ec%8a%a4-%ec%b9%98%eb%a3%8c%ed%95%98%ea%b8%b0-%e2%84%93/