ot::DataPollSender::SendDataPoll() method
Enqueues a data poll (an IEEE 802.15.4 Data Request) message.
Syntax
Error SendDataPoll(void); Return value
kErrorNone Successfully enqueued a data poll message kErrorAlready A data poll message is already enqueued. kErrorInvalidState Device is not in rx-off-when-idle mode. kErrorNoBufs Insufficient message buffers available.