lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 2109:0100 VIA Labs, Inc. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 8564:4000 Transcend Information, Inc. RDF8
Bus 002 Device 002: ID 0424:5744 Standard Microsystems Corp. 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0c45:670c Microdia 
Bus 001 Device 003: ID 04f3:20d0 Elan Microelectronics Corp. 
Bus 001 Device 007: ID 0424:2740 Standard Microsystems Corp. 
Bus 001 Device 006: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 004: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 002: ID 0424:2744 Standard Microsystems Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub