lsusb - complex
Bus 001 Device 002: ID 13fd:1640 Initio Corporation ASUS SDRW-08D1S-U DVD-RW
Bus 001 Device 003: ID 04f2:b213 Chicony Electronics Co., Ltd
Bus 004 Device 005: ID 0421:007b Nokia Mobile Phones
Bus 005 Device 004: ID 1d57:32da Xenta 2.4GHz Receiver (Keyboard and Mouse)
Bus 005 Device 003: ID 1690:0754 Askey Computer Corp. [hex]
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:0002 Linux Foundation 2.0 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