(ath_hal_getcapability(_ah, HAL_CAP_HT, 0, NULL) == HAL_OK)
#define ath_hal_getrtsaggrlimit(_ah, _pv) \
(ath_hal_getcapability(_ah, HAL_CAP_RTS_AGGR_LIMIT, 0, _pv) == HAL_OK)
(ath_hal_getcapability(_ah, HAL_CAP_HT, 0, NULL) == HAL_OK)
#define ath_hal_getrtsaggrlimit(_ah, _pv) \
(ath_hal_getcapability(_ah, HAL_CAP_RTS_AGGR_LIMIT, 0, _pv) == HAL_OK)