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GPhotoFS -------- GPhotoFS is a filesystem client based on libgphoto2 that exposes supported cameras as filesystems; while some cameras implement the USB Mass Storage class and already appear as filesystems (making this program redundant), many use the Picture Transfer Protocol (PTP) or some other custom protocol. But as long as the camera is supported by libgphoto2, it can be mounted as a filesystem using this program. As libgphoto2 is a userspace library for interacting with cameras, it is natural that if one is to build a filesystem ontop of it, one should use FUSE, and that is what I have done. Getting it ---------- Releases are available at: http://www.gphoto.org/ and the current source code is available in the gphoto project's github repository: http://github.com/gphoto/gphotofs Requirements ------------ FUSE >= 2.2 GLib >= 2.6 libgphoto2 >= 2.1 (Maybe one can go further back but I haven't tried). How to mount a filesystem ------------------------- GPhotoFS implements the same model/port/speed command line options that gphoto2 does, so you can use them to fine tune your choice of camera - but for most people, the autodetection will Just Work(tm) - all you do is run it and give it a mount point. (The --usbid option is not yet supported, but will be eventually). So, just do: gphotofs <mountpoint> and when you're finished, you can unmount with: fusermount -u <mountpoint> Usage ----- As you'd expect, once you've mounted the camera, you can interact with it like a filesystem, though with limitations. You can: - Traverse directories - Read the contents of files - Delete files - Move files (Read + delete) - Use 'du' to measure file size - Mount the filesystem before plugging in a camera. - Add/Remove directories - Add (upload) files (depends on camera used). - Get free space information - This one seems to be very much at the mercy of the camera manufacturer. I don't know if it'll ever be possible in a general way. (Depends on gp_camera_get_storageinfo()). You cannot: - Modify files still has some problems. - Rename files/directories - Unplug and replug a camera and expect things to keep working. - The backend gets confused and you'll just get errors when you try to do anything. Unmount and remount the filesystem and you'll be back in business. Acknowledgements ---------------- Christopher Lester wrote a FUSE filesystem that is built on top of the gphoto2 command line utility rather than libgphoto2. As he indicated he was not inclined to move it over to the library, and as I wanted to have a go at writing a FUSE filesystem, I went ahead and did it. For the time being, his one is more featureful, but has problems compiling with the latest release of FUSE and is self-admittedly slow. http://www.hep.phy.cam.ac.uk/~lester/gphoto2-fuse-fs/ Contact info ------------ Philip Langdale <firstname.lastname@example.org> Marcus Meissner <email@example.com>