Raspberry Pi Zero – Programming over USB! | Andrew's blog

http://pi.gbaman.info/?p=699
RasPiをUSBデバイスとして遊ぶ話。
rpi-4.4.y: Add USB gadget support to Pi Zero by notro · Pull Request #1239 · raspberrypi/linux
https://github.com/raspberrypi/linux/pull/1239