Does a Wireless USB stick with Master Mode exist?

Hi, I am attempting to build a car computer that uses two USB wireless sticks.

One would connect outwards (easy) the other would act as an access point / router.

However I have not been able to find a USB stick that supports Master Mode, never mind one that works on Linux.

Does anyone know of such a product?

thanks,
Dave

Take a look at this page on Linux wireless drivers.

Drivers - Linux Wireless

The ones that are listed as supporting AP mode are these:

b43
ipw2200
libertas_tf
p54
rt61pci
rt73usb
rt2400pci
rt2500pci
rt2500usb

Some of them are for pci/pcmcia cards, but take a look at this incomplete listing of USB cards. There are a lot of p54 cards on that list.

USB - Linux Wireless

Others that are obviously for USB cards are the rt73usb and rt2500usb. Here is a list of some hardware that works, but it doesn't list which are USB.

Hardware - Rt2x00Wiki

If you could put a pcmcia slot in the computer, you will find it easier to get what you are looking for.

EDIT: Here's a site with the devices categorized by type.
Ralink chipsets based wireless devices

Thank you very much for your help.

This is exactly what I needed!