Function read_packet

src/features.rs:539–555

()

const READ_TIMEOUT_MS: i32 = 500;

fn read_packet() -> Option<[u8; 64]> {
    let mut buffer = [0u8; 64];
    match DEVICE_CONNECTION
        .get()
        .expect("Device connection must be initialized")
        .lock()
        .unwrap()
        .read_timeout(&mut buffer, READ_TIMEOUT_MS)
    {
        Ok(0) => None,
        Ok(_) => Some(buffer),
        Err(error) => {
            error!("Failed to read packet: {:?}", error);
            None
        }
    }
}

fn read_ack() {
    for attempt in 0..MAX_READ_ATTEMPTS {