Code example (continued)
st_tx_ctl(conn, ula, &tx_hdr, NULL, NULL);
st_rx(conn, &ula, &rx_hdr, NULL, NULL);
ST_HDR_SET_OPCODE(&tx_hdr, ST_OP_DATA);
ST_HDR_SET_CHANNEL(&tx_hdr, 2);
ST_HDR_SET_FLAGS(&hdr, ST_FLAG_LAST);
st_tx_data(conn, ula, &tx_hdr, bx, bufsize, 0,
rem_stusize, rem_bufsize);
st_rx(conn, &ula, &rx_hdr, NULL, NULL);