static int rtw_ampdu_enable = 1;/* for enable tx_ampdu ,0: disable, 0x1:enable (but wifi_spec should be 0), 0x2: force enable (don't care wifi_spec) */
static int rtw_rx_stbc = 1;/* 0: disable, 1:enable 2.4g */
static int rtw_ampdu_amsdu;/* 0: disabled, 1:enabled, 2:auto . There is an IOT issu with DLINK DIR-629 when the flag turn on */