Talk page - wifi card Atheros Communications Inc TP-Link TL-WN821N v3.1 [Atheros AR9002]
have you tried the free firmware on this device?
by sudoman, 23:27, 30 August 2011
Have you tried installing the free atheros-firmware package? Or does it not work even then?
Atheros Communications Inc TP-Link TL-WN821N v3.1 [Atheros AR9002]
by Bertel, 04:14, 3 September 2011
I found: It says: ath9k_htc provides hardware support for Atheros AR9001 and AR9002 family hardware. But the driver is part of wireless-testing and the newer, properly versioned firmware is at: So I downloaded htc_7010.fw and htc_9271.fw and placed them in /lib/firmware, but I don't know what to do next.
by sudoman, 12:59, 3 September 2011

I'm afraid that firmware is non-free, so it won't work with Trisquel, as the driver probably isn't installed either, due to its dependency on that firmware. You would have to compile the driver somehow.

I feel your pain, as I just bought one of these, hoping it would be v2, but it came as v3.1. Where can we find v2 ?? :(

v 3.1
by sudoman, 13:09, 3 September 2011

In case anyone reading this is curious, I got this card from NewEgg, which didn't list the version number. I don't suggest taking that risk.

Trisquel 6, version 3.2 kernel
by Bertel, 19:19, 8 June 2013
Now the default Linux-libre 3.2.0-45-generic includes the ability to load the firmware needed for these devices. The firmware itself is still needed and pre-compiled .fw files are available for download at (drop them into /lib/firmware) but eventually that won't be necessary either once it gets packaged and included in the Trisquel repositories.

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