How to "instantiate" a USB Gadget Source Sink driver?

Hi,

We're using the USB Gadget driver on our BeagleBoard-based board and
we want to use the "sourcesink" USB driver (linux-omap-2.6/drivers/usb/
gadget/f_sourcesink.c) for testing Vendor Specific EP0 Control
messages. Does anyone know how go about "instantiating" this driver
or USB API? I googled the web but all I could find were references to
this files without any context on how to use it. I guess if no one
knows, I will have to "try" to contact the kernel expert David
Brownell, who's the original author of this. Thanks!

Regards,
Andy