https://sourceforge.net/p/gphoto/bugs/965/ includes a patch for the S100 case. The attached patch built and worked under Saucy with my own S100 (and includes the S110 case from upstream as well, though I didn't test that.)
** Attachment added: "upstream-r14452-plus-S100-change" https://bugs.launchpad.net/ubuntu/+source/gphoto2/+bug/1245303/+attachment/3893310/+files/upstream-r14452-plus-S100-change -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1245303 Title: gphoto2 fails to recognize current Canon S100 with An error occurred in the io-library ('Bad parameters') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gphoto2/+bug/1245303/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs