vchiq_add_service_internal
service = vchiq_add_service_internal(state, params, srvstate, instance, NULL);
service = vchiq_add_service_internal(state, params, VCHIQ_SRVSTATE_OPENING, instance, NULL);
service = vchiq_add_service_internal(instance->state, ¶ms,
vchiq_add_service_internal(struct vchiq_state *state,