Hi all,
Let's take a look at the brand new, yet-to-be-merged USB Composite Gadget Framework.
The framework was introduced by Linux USB Developer David Brownell and, thanks to his great work, we're gonna be able to reuse what we now call usb function drivers into another entities, combining them to create a usb composite gadget.
Quoting Dave himself:
We want to split most of the current gadget drivers into reusable/combinable "usb_function" entities, making it easier to set up composite and multi-configuration gadgets.