Happy to say that it’s al working now.
What have I done?
I wrote a new .img from hifiberry installer.
After boot up an M2P update and boot again.
I have a older version of Kodi now (isengard) but it is playing music now over the Hifiberry output!!!!!
I am sorry to say that after those instruction stil no changes in Kodi!!
Everything else is oké and I stop when I use Kodi, so nothing else is going .
I also treid to install Kodi again.
Very strange , bc the led on the Hifiberry is on and it plays wonderfull, only not in Kodi!!!
Dear Heiner, Thank you , I did exactly what you wrote here.
Stil no hifiberry in Kodi…led is on and its playing in my other set up with volumio!!!
What kan it be???