HelenOS sources

hc_add_endpoint   203 uspace/drv/bus/usb/xhci/endpoint.c 	if (ep_base->endpoint != 0 && (err = hc_add_endpoint(ep)))
hc_add_endpoint   131 uspace/drv/bus/usb/xhci/hc.h extern errno_t hc_add_endpoint(xhci_endpoint_t *);
HelenOS homepage, sources at GitHub