https://blog.faceutil.com/2017/04/14/%ed%9c%b4%ec%a7%80%ed%86%b5-%ec%82%ad%ec%a0%9c%ed%8c%8c%ec%9d%bc-%eb%b3%b5%ea%b5%ac-usb-%ec%82%ad%ec%a0%9c%ed%8c%8c%ec%9d%bc-%eb%b3%b5%ea%b5%ac-%ec%82%ad%ec%a0%9c%ed%8c%8c%ec%9d%bc-%eb%b3%b5%ec%9b%90/