ngtcp2_conn_submit_crypto_data
==============================

Synopsis
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*#include <ngtcp2/ngtcp2.h>*

.. function:: int ngtcp2_conn_submit_crypto_data(ngtcp2_conn *conn, ngtcp2_encryption_level encryption_level, const uint8_t *data, const size_t datalen)

    
    `ngtcp2_conn_submit_crypto_data` submits crypto data *data* of
    length *datalen* to the library for transmission.
    *encryption_level* specifies the encryption level of data.
    
    The library makes a copy of the buffer pointed by *data* of length
    *datalen*.  Application can discard *data*.