Backend to control HP Scanjet 3900 series scanners in linux (hp3800, hp3970, hp4070, hp4370 and those which use RTS8822 chipset). Written in C, using libusb libraries, it runs as stand-alone application and integrated in SANE project.
Driver for the Polhemus Liberty v2 (tm) motion tracker.
Driver programmed in C, using libUSB. Outputs position and orientation data for all detected sensors. Easy to modify and include in your own programs.