An apparently successful patch has been worked out upstream. See
http://thread.gmane.org/gmane.linux.kernel.wireless.general/22825/focus=22840

The concluding patch for 2.6.27 was posted
From: Elias Oltmanns
Subject: Re: [PATCH] ath5k: Fix reset sequence for AR5212 in general and RF5111 in particular
Newsgroups: gmane.linux.kernel.wireless.general
Date: 2008-10-29 13:25:42 GMT

Maybe it also applies to Debian's 2.6.26?
I can confirm that AR5212 doesn't work as-is on Lenny.
I'm off to try rebuilding a Lenny kernel with this patch.
Hmm. Maybe I should try an unstable kernel first.

- Larry



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On Mon, Nov 17, 2008 at 07:10:34PM -0800, Larry Doolittle wrote:
> I can confirm that AR5212 doesn't work as-is on Lenny.

Never mind. User error. An AR5212 (pci id 168c:0013 (rev 01))
works for me now on linux-image-2.6.26-1-686 version 2.6.26-10.

- Larry



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