Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 004: ID 1926:0006  
Bus 003 Device 003: ID 0a5c:21b1 Broadcom Corp. 
Bus 003 Device 002: ID 05af:0809 Jing-Mold Enterprise Co., Ltd 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 04f2:b14c Chicony Electronics Co., Ltd 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 007: ID 1934:0702  
Bus 001 Device 004: ID 0bda:0118 Realtek Semiconductor Corp. Mass Storage Device
Bus 001 Device 003: ID 058f:6254 Alcor Micro Corp. USB Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub