AR_PHY_SWAP_ALT_CHAIN  541 drivers/net/wireless/ath/ath9k/ar9002_phy.h #define AR_PHY_SWAP_ALT_CHAIN   0x00000040
AR_PHY_SWAP_ALT_CHAIN  792 drivers/net/wireless/ath/ath9k/ar9003_phy.h #define AR_PHY_SWAP_ALT_CHAIN       0x00000040