HelenOS sources
bus_endpoint_add 85 uspace/drv/bus/usb/xhci/device.c if ((err = bus_endpoint_add(&dev->base, &ep0_initial_desc, &ep0_base)))
bus_endpoint_add 181 uspace/lib/usbhost/include/usb/host/bus.h int bus_endpoint_add(device_t *, const usb_endpoint_descriptors_t *, endpoint_t **);
bus_endpoint_add 78 uspace/lib/usbhost/src/ddf_helpers.c const int err = bus_endpoint_add(dev, ep_desc, &ep);
bus_endpoint_add 129 uspace/lib/usbhost/src/usb2_bus.c err = bus_endpoint_add(dev, &ep0_desc, &default_ep);
bus_endpoint_add 164 uspace/lib/usbhost/src/usb2_bus.c err = bus_endpoint_add(dev, &ep0_desc, NULL);
HelenOS homepage, sources at GitHub