https://blog.faceutil.com/2017/06/01/ps2%ec%97%90%ec%84%9c-ps1-%ea%b2%8c%ec%9e%84%ed%94%8c%eb%a0%88%ec%9d%b4-%ed%95%98%ea%b8%b0-usb-%ec%9d%b4%ec%9a%a9-%d1%91/