From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Sat, 7 Jan 2012 11:01:31 +0530
Subject: [ath9k-devel] Question about duration of data frame in ath9k_htc
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	<20120107020151.B53C81FFF8@mail.watchdata.com.cn>
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?? wrote:
> 	From wireshark, I noticed that when send an data frame , the
> duration of frame control is fixed at 60 , no matter the frame length is 100
> bytes or 1000 bytes.
> 
> 	It seems this value is calculated in firmware and should be correct.
> But I don't know why. And this value can be set in mac80211?

Duration calculation is broken for ath9k_htc.
See: http://linuxwireless.org/en/users/Drivers/ath9k_htc#TODO

Sujith