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rather than the whole beacon interval. The reference driver and Linux ath9k both choose 80% of the beacon interval and they do it in the driver rather than the HAL (Ath reference) or ath9k_hw (ath9k.) This quietens stuck beacon conditions on my AR9220/AR9280 based NICs when a lot of burst broadcast/multicast traffic is going on. It doesn't seem to annoy the earlier MACs as much as the AR9280 and later one. Obtained from: Linux ath9k, Atheros