void __ahdecl(*ah_set11nAggrMiddle)(struct ath_tx_desc *ds, a_uint32_t numDelims);
void __ahdecl(*ah_set11nAggrLast)(struct ath_tx_desc *ds);
void __ahdecl(*ah_clr11nAggr)(struct ath_tx_desc *ds);
void __ahdecl(*ah_set11nAggrMiddle)(struct ath_tx_desc *ds, a_uint32_t numDelims);
void __ahdecl(*ah_set11nAggrLast)(struct ath_tx_desc *ds);
void __ahdecl(*ah_clr11nAggr)(struct ath_tx_desc *ds);