I am trying to make a complete list at my homepage of Canon cameras that work together with Gphoto2. I ask here because more people here than anywhere else use Linux and are familiar with Gphoto2.
Cameras that I own that work are:
1000D
7D
6D
Cameras that I own and that don´t work are:
M5
D30
The former is the case. It’s about connecting the camera via USB, downloading images, tethering and reading and setting parameters (shutter count, copyright information etc.).