gphoto2 fails to operate on Debian 12

[Bernard <bdebreil@free.fr>]

Gphoto2 no longer operates on Debian 11 ever since recent update, same 
problem on other laptop on Debian 12.

gphoto2, for many years, was my tool for downloading image files (RAW, 
JPG…) from my Canon EOS 600D camera.

When upgrading to Debian 11 about 2 yrs ago, I started to occasionnally 
encounter Erreur (-53 : « Impossible de communiquer avec le périphérique 
USB problems using gphoto2 :

$ gphoto2 - -auto-detect still operated OK, but then when typing

$ gphoto2 -L, I got an error message 3 times out of 4 ; I had to 
unplug/replug the camera and do it again, getting each time a different 
value for… and in the end gphoto2 -L and other commands got to work OK.

But, now that I got a recent update of my Debian 11, the error message 
no longer happen 3 times out of 4… but it does happen EVERY TIME !! I 
don’t know what to do next to download my picture files.

I also have a laptop that used to run an old Ubuntu, on which I recently 
installed Debian 12, to the same result concerning gphoto2 : it used to 
work on old Ubuntu, not any more on Debian 12

After having run

$ gphoto2 –auto-detect :

Canon EOS 600D usb : 001,004

$ gphoto2 -L

Erreur (-53 : « Impossible to communicate with périphérique USB

impossible to use interface 0 :

If there is no way to get gphoto2 to operate , would there be another 
means to operate my Canon EOS on Debian ?

Thanks in advance for your help.

Bernard