I installed the SDK again, but also made the lib renamed and run ldconfig, but the message libqhyccd.so.22 not found persists. Does EKOS search at another place for this lib? I now /usr/local/lib should be the right one, but...
found out that the library has to be present in /lib/x86_64-linux-gnu, which makes no sense for me for and user installed lib.
So renaming it there (also with SDK) makes INDI find the lib now....
Still I do not know why -> somebody could explain this? Many thanks.
thanks to all, I managed to do it. Finally I used the SDK version (as with it I'm able to test camera function without EKOS as well) and made a link from
in /lib/x86_64-linux-gnu/libqhyccd.so.22 to /usr/local/lib/libqhy.so.18.104.22.168 and run ldconfig afterwards.