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Date: Wed, 5 May 2010 12:26:25 +0200
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Subject: 2.6.33.2: Turn tx power off/on for Atheros card
From: Yegor Yefremov <yegorslists@googlemail.com>
To: linux-wireless@vger.kernel.org
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I'm using kernel 2.6.33.2 with AR2413 WLAN card. Issuing

iwconfig wlan0 txpower off

turns txpower off. I can see this status by iwconfig wlan0 and the
communication with AP terminates. But when I turn the txpower on

iwconfig wlan0 txpower on

nothing happens. Though iwconfig shows the previous tx power value.
Only ifconfig wlan0 down and then up recovers the transmission.

Is it a known bug or I'm doing something wrong?

Regards,
Yegor