ni_usb_nonblocking_send_bulk_msg
retval = ni_usb_nonblocking_send_bulk_msg(ni_priv, out_data, i, &bytes_written, 1000);
retval = ni_usb_nonblocking_send_bulk_msg(ni_priv, data, data_length, actual_data_length,
retval = ni_usb_nonblocking_send_bulk_msg(ni_priv, data, data_length,