Unfortunately I am stuck with 2.4.24 for now.  I should also mention that I am using the AR9220 in AP mode on the PPC box.
I have tried a 5GHz antenna and a separate 11a client as well - the net result is no association and no tx packet exchange (i.e. no beacons). I do see some packets coming in (rate control, etc), but once again, the client does not see any packets from the AP.
The same system and kernel works fine with a AR5413 device (XA622).

From: Érico Porto [mailto:ericoporto2008@gmail.com]
Sent: October 28, 2011 5:56 AM
To: Michal Debski
Cc: madwifi-users@lists.sourceforge.net
Subject: Re: [Madwifi-users] AR9220/Pci Partially Working

Do you HAVE to use such an old kernel? I mean, this is from 2005... Wouldn't you be better running a newer kernel with ath9k ?

Just a guess by the way, I do use a ppc, but my mini pcis are ath5k based - aiming at under gigaHertz. But on that case, a card alone doesn't give me - almost - any RF output, unless I put another one and force them to traffic some data - using iperf or another software. 

Érico V. Porto

On Wed, Oct 26, 2011 at 6:38 PM, Michal Debski <michald@edgewater.ca> wrote:
I am trying to integrate a WLM200N5 minipci 11n/a card (which is, I believe, AR9220-based, pciid 0x168c0029) into an PPC-based box running 2.4.24.
I have patched my copy of the madwifi-devel stream with Mr. Roskin's AR9220 patch
(found at http://madwifi-users.20070.n2.nabble.com/MadWifi-driver-fails-to-recognize-Ubiquity-card-td5294763.html).
The card appears to be working from the software side of things - I can bring up the interface, setup ssid and a channel, and retrieve stats.
The radio, however, does not seem to be producing any RF output - confirmed by an 802.11 power analyzer connected to either of the antennas.
I have tried setting the RFKILL parameter both in software and hardware (blocking the appropriate PCI pin), to no avail.
I would welcome any ideas regarding using similar (pciid 0x168c0029) cards with Madwifi. Perhaps someone would have an updated patch (which would be very appreciated)?

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