297      * connect param request from a slave if we are currently trying to  in ble_ll_ctrl_conn_param_pdu_proc()
304          * Not sure what to do about the slave. It is possible that the  in ble_ll_ctrl_conn_param_pdu_proc()
381      * the amount of slave latency as the slave may not be listening  in ble_ll_ctrl_conn_upd_make()
678  * @param slave_req flag denoting if slave requested this. 0: no 1:yes
881     /* NOTE: slave should never receive one of these */  in ble_ll_ctrl_rx_phy_rsp()
889  * NOTE: slave is the only device that should receive this.
936          * that the slave will receive on; s to m is the one it will  in ble_ll_ctrl_rx_phy_update_ind()
1038  * different PDUs allowed for master/slave and TX/RX
1248  * should only be received by a slave.
1399         /* Procedure has completed but slave needs to send START_ENC_RSP */  in ble_ll_ctrl_rx_start_enc_rsp()
1404      * XXX: for now, a Slave sends this event when it receivest the  in ble_ll_ctrl_rx_start_enc_rsp()
1608     /* Only a slave should receive this */  in ble_ll_ctrl_rx_conn_update()
1674  * Called when we receive a feature request or a slave initiated feature
1693      * Only accept slave feature requests if we are a master and feature  in ble_ll_ctrl_rx_feature_req()
1694      * requests if we are a slave.  in ble_ll_ctrl_rx_feature_req()
1763     /* XXX: remember to deal with this on the master: if the slave has  in ble_ll_ctrl_rx_conn_param_req()
1773      * Check for procedure collision (Vol 6 PartB 5.3). If we are a slave  in ble_ll_ctrl_rx_conn_param_req()
1774      * and we receive a request we "consider the slave initiated  in ble_ll_ctrl_rx_conn_param_req()
1818     /* A slave should never receive this response */  in ble_ll_ctrl_rx_conn_param_rsp()
1824      * This case should never happen! It means that the slave initiated a  in ble_ll_ctrl_rx_conn_param_rsp()
1826      * state just clear the awaiting reply. The slave will hopefully stop its  in ble_ll_ctrl_rx_conn_param_rsp()
2184  * XXX: may want to check, for both master and slave, whether the control