Hello, I bought a wireless usb tp link wn821n.
I configured that on VB, VB detect my wifi card but don't backtrack.

When i write lsusb i've that
root@bt:~# lsusb
Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0bda:8178 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

But when i write iwconfig i have no wireless extensions. Please help me.