lsusb - bzip 103 3
Bus 002 Device 002: ID 8087:8001 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8009 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 10d5:55a2 Uni Class Technology Co., Ltd 2Port KVMSwitcher
Bus 003 Device 004: ID 2222:3061 MacAlly
Bus 003 Device 003: ID 04d9:2011 Holtek Semiconductor, Inc.
Bus 003 Device 002: ID 058f:9254 Alcor Micro Corp. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub