Every time I tried downloading photos from my iPhone, even though Fedora would recognize it as a camera, I'd always get an error when trying to get to it. Here's a solution.
Thanks to
mutaku.com for posting the solution.
The way it worked for me was a bit different.
1. I plugged in the iPhone.
2. Opened up digiKam
3. Import -> Cameras (add) -> add Camera... -> Auto-detect
Then, I went back into the desktop, double clicked on the iPhone icon, and dig through the 'folders' DCIM -> 100APPLE and click on 'Open gThumb Image Viewer'
It threw an error at first, but then I did it again, and it just worked. Just doing it from digiKam kept throwing me errors.

This was only an issue for me the very first time I was able to successfully see my photos via Linux, after that it would just work even on different Fedora installs.