ukrkyi@linux-xwol:~> lsusb -t/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M |__ Port 3: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M |__ Port 3: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
Bus01 та Bus02 — один й той саме фізичний пристрій.