librbt is a usermode usb driver built on top of libusb-1.0 for a controlling a toy robot arm like the ones found in Maplins in the UK. This library has been built for linux the the robot arm comes with a windows driver.
see here http://www.maplin.co.uk/robotic-arm-kit-with-usb-pc-interface-266257
the libary provides an api in the form of several easy to use functions for controlling the robot and its motors.
Example.
==TODO==