HelenOS sources

hub_connect_device  103 uspace/drv/bus/usb/vhc/hub/hub.h size_t hub_connect_device(hub_t *, void *);
hub_connect_device  188 uspace/drv/bus/usb/vhc/hub/virthub.c 	size_t port = hub_connect_device(hub, conn);
HelenOS homepage, sources at GitHub