File list (Check if you may need any files):
usb2
....\Makefile
....\hcd
....\...\Makefile
....\...\ehcd
....\...\....\Makefile
....\...\....\usbEhcdBandwidth.c
....\...\....\usbEhcdEventHandler.c
....\...\....\usbEhcdInitExit.c
....\...\....\usbEhcdRhEmulation.c
....\...\....\usbEhcdTransferManagement.c
....\...\....\usbEhcdUtil.c
....\...\ohcd
....\...\....\Makefile
....\...\....\usbOhci.c
....\...\....\usbOhciDebug.c
....\...\....\usbOhciIsr.c
....\...\....\usbOhciRootHubEmulation.c
....\...\....\usbOhciTransferManagement.c
....\...\uhcd
....\...\....\Makefile
....\...\....\usbUhcdInitialization.c
....\...\....\usbUhcdIsr.c
....\...\....\usbUhcdManagePort.c
....\...\....\usbUhcdRhEmulate.c
....\...\....\usbUhcdScheduleQSupport.c
....\...\....\usbUhcdScheduleQWaitForSignal.c
....\...\....\usbUhcdScheduleQueue.c
....\...\....\usbUhcdSupport.c
....\hub
....\...\Makefile
....\...\usbHubBusManager.c
....\...\usbHubClassInterface.c
....\...\usbHubEventHandler.c
....\...\usbHubGlobalVariables.c
....\...\usbHubInitialization.c
....\...\usbHubMisc.c
....\...\usbHubPortEventHandler.c
....\...\usbHubUtility.c
....\usbd
....\....\Makefile
....\....\device.c
....\....\urb.c
....\....\usbd.c
....\....\usbdMisc.c