lsusb - 2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 002 Device 002: ID 0bda:0181 Realtek Semiconductor Corp.
Bus 001 Device 012: ID 413c:2101 Dell Computer Corp. SmartCard Reader Keyboard
Bus 001 Device 004: ID 0424:2502 Standard Microsystems Corp.
Bus 001 Device 005: ID 041e:401d Creative Technology, Ltd Webcam NX Ultra
Bus 001 Device 006: ID 0424:2602 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 007: ID 0424:2228 Standard Microsystems Corp. 9-in-2 Card Reader
Bus 001 Device 008: ID 0461:4d15 Primax Electronics, Ltd Dell Optical Mouse
Bus 001 Device 016: ID 1cfb:1040
Bus 001 Device 020: ID 111d:0000