Hi everybody! My wireless card is AR9280. I set the IEEE80211_TX_CTL_NO_ACK flag before send a packet, but found it no use. It still wait for an ACK. Then I read the code, in ath9k_htc_tx_data(htc_drv_txrx.c) , it seems there is only two flags: #define ATH9K_HTC_TX_CTSONLY 0x1 #define ATH9K_HTC_TX_RTSCTS 0x2 None is about ack. Does anyone know how to make this flag work properly? Thanks a lot! gang.li -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html