How do I configure VMWare Fusion to let virtual machines access USB drives?

[cnitpro]

I want my Ubuntu 10.10 on VMWare Fusion to be able to use/configure my wireless usb adapter. So far all I can find is that it can access internet from it if it is already configured on my macbook, but i want Ubuntu to have full control of the device. Basically, i want to be able to use aircrack-ng on a virtual machine