meteyou@meteyou-G2:~$ lsusb
Bus 007 Device 004: ID 0b05:1726 ASUSTek Computer, Inc. 
Bus 007 Device 003: ID 04f2:b012 Chicony Electronics Co., Ltd 
Bus 007 Device 001: ID 0000:0000  
Bus 006 Device 001: ID 0000:0000  
Bus 005 Device 001: ID 0000:0000  
Bus 004 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem
Bus 004 Device 001: ID 0000:0000  
Bus 003 Device 001: ID 0000:0000  
Bus 002 Device 004: ID 0b05:1712 ASUSTek Computer, Inc. 
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000