@tomvigl - that readlink change did not work for me. I had to use the solution from
@montefuscolo - although your solution appeared to work, I could not change the resolution at all - it was stuck at 320x240 ...uugggghh
@AwesomeHaircut - the pinned workaround works fine - now I am able to change the resolution as described at https://www.dev47apps.com/droidcam/linuxx/
thanks all.
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