Function encode_poll_request 

pub fn encode_poll_request(
    out: &mut [u8],
    callsign: &Callsign,
    reflector_callsign: &Callsign,
) -> Result<usize, EncodeError>

Encode a 17-byte poll (keepalive) request.

Layout per ircDDBGateway/Common/PollData.cpp:170-186 (getDCSData direction DIR_OUTGOING):

• [0..8]: space-padded client callsign
• [8]: 0x00
• [9..17]: space-padded reflector callsign

Errors

Returns EncodeError::BufferTooSmall if out.len() < 17.

See also

ircDDBGateway/Common/PollData.cpp:170-186 (getDCSData) for the reference keepalive encoder.