__rfcomm_dlc_close
__rfcomm_dlc_close(d, 0);
__rfcomm_dlc_close(d, err);
__rfcomm_dlc_close(d, err);
__rfcomm_dlc_close(d, ETIMEDOUT);
__rfcomm_dlc_close(d, ECONNREFUSED);
__rfcomm_dlc_close(d, ECONNREFUSED);
r = __rfcomm_dlc_close(d, err);
__rfcomm_dlc_close(d, err);