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I had the same issue on the toupcam driver on a rpi1: everything worked fine but the toupcam driver. I ended up passing to a newer raspbian on a rpi4. You could try compiling the drivers instead of installing them but I wouldn’t expect much better result.
If You could, I would also weight returning the toupcam for a better camera with better driver support, e.g. ZWO ASI 120 series.
As I said: "Because the only ARM images are for RPi, I had to do the git-clone procedure to to install INDI core, indi 3rd party libraries and third party drivers. It took a while but it's done"
So I already compiled them, there is no binary install for Debian on ARM SBCs
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