Hi, I am trying to get EOS M2 supported in libgphoto2. Basically the camera looks perfectly controllable over USB (better than its descendants), but some tweaks are needed, and I'd like to discuss them here before submitting a patch.
First of all, the camera requires regetting device info after setting the remote mode to 0x15. For this reason currently the shooting related commands work only every other time: get device info while the remote mode is still 0 -- set the remote mode to 0x15 -- report caption not supported -- exit -- get device info, this time with the remote mode 0x15 -- successfully capture an image -- reset the remote mode to 0, and so on. Of course there is no problem to insert one more ptp_getdeviceinfo() call into camera_init(), but this doesn't look optimal, as the function is later called once more from camera_prepare_canon_eos_capture(). So might it be possible to somehow minimize the number of those calls? Second, when accessing the M2 I get multiple error messages: "halfsize 0 is not expected 278". It seems the camera indeed produces a useless PTP_DPC_CANON_EOS_FocusInfoEx field, filled with zeroes. Since this is not actually an error and the message is quite irritating, I'd like to know if it would be OK to disable it just for one particular camera. Also, my previous patch for EOS M non-focus doesn't work here and needs to be updated. It would be interesting to have a look at logs of other EOS M* cameras to see if they behave differently at this point. -- Regards, Alexey Kryukov <anagnost at yandex dot ru> Moscow State University Faculty of History ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Gphoto-devel mailing list Gphoto-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gphoto-devel
