struct tle_tcp_stream_cfg {
uint8_t nb_retries; /**< max number of retransmission attempts. */
+ uint64_t udata; /**< user data to be associated with the stream. */
+
/* _cb and _ev are mutually exclusive */
struct tle_event *err_ev; /**< error event to use. */
struct tle_stream_cb err_cb; /**< error callback to use. */