Enable support for Atheros 802.11n USB hardware:
* UB81 - 2x2 2.4 GHz
* UB82 - 2x2 2.4 GHz and 5 GHz
* UB83 - 1x2 2.4 GHz

This includes the following devices currently on the market:
Dlink DWA-160A1, Netgear WNDA3100 and WN111v2, TP-Link
TL-WN821N, and AVM FRITZ!WLAN N USB Stick.

This driver requires its own supplicant driver for
wpa_supplicant 0.4.8. For your convenience you can find the
tarball here:

http://www.kernel.org/pub/linux/kernel/people/mcgrof/otus/wpa_supplicant-0.4.8_otus.tar.bz2

Before compiling wpa_supplicant, ensure your .config has at
least the following:
CONFIG_WIRELESS_EXTENSION=y
CONFIG_EAP_WSC=y
CONFIG_WSC_IE=y
CONFIG_DRIVER_WEXT=y
CONFIG_DRIVER_OTUS=y

After a successful compile, you can use the Atheros device as
shown in the example:
$ wpa_supplicant -Dotus -i <atheros device from ifconfig> -c /path/to/wpa_supplicant.conf -d

source code:

drivers/staging/otus/