HelenOS sources

HUB_PORT_STATE_DISABLED   78 uspace/drv/bus/usb/vhc/hub/hub.c 	case HUB_PORT_STATE_DISABLED:
HUB_PORT_STATE_DISABLED  149 uspace/drv/bus/usb/vhc/hub/hub.c 		port->state = HUB_PORT_STATE_DISABLED;
HUB_PORT_STATE_DISABLED  141 uspace/drv/bus/usb/vhc/hub/virthubops.c 			hub_set_port_state(hub, port, HUB_PORT_STATE_DISABLED);
HelenOS homepage, sources at GitHub