K 10 svn:author V 6 adrian K 8 svn:date V 27 2011-01-28T08:35:55.578689Z K 7 svn:log V 282 Bring in some 802.11n packet duration calculation functions from a mix of Sam/Rui and linux ath9k . This will eventually be used by rate control modules and by the TX code for calculating packet duration when handling rts/cts protection. Obtained from: sam@, rpaulo@, linux ath9k END