libptp2 is a library used to communicate with PTP devices like still imaging cameras or MP3 players (KODAK mc3). You can download files or tweak camera properties using ptpcam program boundled with libptp2. Supported Cameras: Most (if not all) USB still cameras designed after 2002 are supporting PTP. Below is the list of vendors implementing PTP in their cameras: Kodak, HP, Nikon, Canon, Panasonic, Olympus, Konica, Minolta, Fuji, Ricoh