TP-LInk Wireless usb adapter

[wissman]

Hello guys i just bought tp-link wireless n usb adapter (TL-WN821N), well i load backtrack and i type ifconfig and i can see only eth and lo,with iwconfig i saw those 2 i said before but it said no wireless extensions found...i try to write "airmon-ng" but it can't find my wireless card,any help how i can make it works?

[imported_hatake_kakashi]

It would be helpful if you can post us the output of lsusb

[Snayler]

Aren't N type usb adapters not supported yet?

[dustyboner]

make sure you have your kernel headers installed

if your adapter is the TL-WN821N v2, you need to get the firmware from h++p://linuxwireless.org/en/users/Drivers/ar9170

download compat-wireless-2009-09-18.tar.bz2 from
h++p://wireless.kernel.org/download/compat-wireless-2.6/

then run:

tar jxvf compat-wireless-2009-09-18.tar.bz2
cd compat-wireless-2009-09-18
make
sudo make install
sudo make unload
reboot