Tvheadend

Hey together,

I had a working tvheadend (stable release) running under Ubuntu 13 - same config but not unicable.

Unicable switch:
In our new house, we have a unicable setup using the following cascadable unicable switch:

It's a german switch - If you have questions concerning it, just ask.

4 LNB input lines are attached (2 vertical and 2 horizontal) and finally using the unicable output line in the building.
In my PC there is a DD Cine S2 v.6.5 installed and running under Ubuntu 14.04 (all current updates installed).
The drivers are installed as it can be found on the manufacturer's homepage (with minor changes):

DD Cine S2 v.6.5:
sudo apt-get install mercurial build-essential libproc-processtable-perl
sudo apt-get install linux-headers-`uname –r`
cd /usr/src
sudo hg clone http://linuxtv.org/hg/~endriss/media_build_experimental/
cd media_build_experimental
sudo make download
sudo make untar
sudo make clean
sudo make distclean
sudo make -j4 (to use 4 cores)
sudo make install
sudo modprobe ddbridge
sudo reboot

Kernel version is:
Linux HTPC 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

tvheadend (current git version) installation:
sudo apt-get install build-essential git pkg-config libssl-dev bzip2 wget
sudo apt-get install libavahi-client-dev zlib1g-dev libavcodec-dev libavutil-dev libavformat-dev libswscale-dev
git clone https://github.com/tvheadend/tvheadend.git
cd tvheadend
./configure
make
./build.linux/tvheadend (started with -C first)

tvheadend config
Well, this is the part where I have no idea how I may set it up correctly.
I tried different things - could scan channels, but xmbc tells me always "No free adapter".
I am unsure where and how to setup unicable frequencies and ID/Scr correctly.

I could not find usual tutorials or informations on how to set this up. I hope anyone can explain me this step by step.
I read also things about a unicable kernel patch - but I dont know if this is still needed nor if it is available.

Many thanks in advance!

Best
Kai