OS/2 and USB - Don't Confuse the Drivers
- UHCD / Universal Host Controller Interface, UHCI / USB 1.0 and 1.1 / USBUHCD.SYS [1]
- OHCD / OHCI (Open Host Controller Interface) Host Controller Driver / USB 1.1 / - USBOHCD.SYS [2]
- EHCI / Enhanced Host Controller Interface / USB 2.0 / USBEHCD.SYS [3]
- xHCI / eXtensible Host Controller Interface / USB 3.0 / N/A