Scanning 35mm film + Digikam + Linux

Is it possible to scan 35mm film negatives using a canon TS3420 and Digikam?

My attempts usually produce huge white .png files of nothing (because a flatbed scanner does not allow the light to go through the film and it bounces back)

What I have found on the web goes usually as follows:

“If you have a TS3420, all you have to do is launch photoshop… “

or

“Digikam is compatible with a plethora of specialized film scanners…”

I use Digikam on Fedora and Open Suse. Using photoshop is not in my immediate, short term, nor long term plans. Purchasing a specialized scanner would require making room for another peripheral.

Does anyone know of a Scanning Negatives with a TS3420 on Linux for Dummies guide?