On Tue, Feb 15, 2022 at 05:37:10PM -0500, Hubert Figuiere wrote: > On 2022-02-15 5:17 p.m., Dave Taylor wrote: > > If not, how much effort do we think it might take to port? > you'll need: > > - A modern C toolchain > - A certain about of RAM > - A proper libusb implementation OR rewrite the USB layer to the platform > implementation > > I'd rate that hard, downright impossible if you hit the hardware limitation.
Looking at the various Arduino boards out there, it looks to me like they typically have RAM measured in two-digit KiB and flash measured in three-digit KiB (that's in the range of 0.0001 GiB for you kids out there). Given that the library binaries libgphoto2, libgphoto2_port and ptp2 alone total well over 1 MiB on my desktop machine, I'd say it's impossible. You might be able to use the source code as a base to create a stripped-down version that could squeeze into that space, but it would be a huge undertaking. With such tight constraints, you'd probably be better off starting from scratch. A quick search brought me to https://github.com/felis/PTP_2.0 which is a PTP driver for Arduino. That's probably a better basis for starting such a project. gphoto2 was designed for extensibility, not for optimized space saving in an embedded environment. Dan _______________________________________________ Gphoto-devel mailing list Gphoto-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gphoto-devel
