Hi all,
thanks to Patrick Boettcher I finally managed to get both, the Pinnacle 
400e and the TT connect S-2400 working on the same machine.

I attached a patch which should apply cleanly against current HG.
Please test the attached patch.
I extracted the necessary firmware file from the TT driver and put it 
here: http://ilpss8.dyndns.org/dvb-usb-tt-s2400-01.fw

Any comments on the patch are welcome.

Thank you.
  André