Bus 004 Device 003: ID 04f3:02f4 Elan Microelectronics Corp. 
Bus 004 Device 002: ID 0471:20d9 Philips (or NXP) 
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 045e:0008 Microsoft Corp. SideWinder Precision Pro
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0781:5530 SanDisk Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub