Bus 002 Device 004: ID 1c4f:0034 SiGma Micro 
Bus 002 Device 006: ID 1058:0748 Western Digital Technologies, Inc. My Passport (WDBKXH, WDBY8L)
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub