HelenOS sources

REC_DEVICE        354 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_IN(REC_DEVICE, USB_DEVREQ_GET_DESCRIPTOR),
REC_DEVICE        364 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_OUT(REC_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
REC_DEVICE        379 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_IN(REC_DEVICE, USB_HUB_REQUEST_GET_DESCRIPTOR),
REC_DEVICE        384 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_IN(REC_DEVICE, USB_HUB_REQUEST_GET_STATUS),
REC_DEVICE        394 uspace/drv/bus/usb/vhc/hub/virthubops.c 		CLASS_REQ_OUT(REC_DEVICE, USB_HUB_REQUEST_SET_FEATURE),