"The PTP (ISO 15740) standard is fortunately becoming widely supported by most digital still photography devices sold today. Mariusz Woloszyn has announced the 1.0pre3 release of the libptp2 library and ptpcam tool. The package tar-ball is available from http://sf.net/projects/libptp and contains libptp2 (the same code used in ptp2 gphoto2 driver) and ptpcam, a useful tool used to tweak PTP camera properties."