Bus 002 Device 008: ID 03f0:7504 Hewlett-Packard Printing Support Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 020: ID 04a9:221c Canon, Inc. CanoScan LiDE 60 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub