Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c52f Logitech, Inc. 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 0830:0101 Palm, Inc. 
Bus 001 Device 002: ID 04b3:4482 IBM Corp. Serial Converter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub