Tvheadend

Hi all,
I've got a Cine S2 DVB-S tuner (http://linuxtv.org/wiki/index.php/Linux4Media_cineS2_DVB-S2_Twin_Tuner) and 4Vl installed. When i start tvheadend it only finds one tuner on the card:

[INFO]:dvb: Found adapter /dev/dvb/adapter0 (STV090x Multistandard) via PCI
[WARNING]:dvr: Output directory for video recording is not yet configured. Defaulting to to "/root". This can be changed from the web user interface.
[INFO]:CSA: Using SSE2 128bit parallel descrambling
[NOTICE]:START: HTS Tvheadend version 2.11 started, running as PID:4340 UID:0 GID:0, settings located in '/root/.hts/tvheadend'
[INFO]:capmt: got connection from client ...

When i start wscan i can use the 2nd tuner (while using tvheadend) but tvheadend doesn't seams to find it.
I've used Mythtv before and there a have a fronted0 en fronted1 adapter. Also see below:

[root@system lib]# cd /dev/dvb/
[root@system dvb]# ls
adapter0
[root@system dvb]# cd adapter0/
[root@system adapter0]# ls
demux0  demux1  dvr0  dvr1  frontend0  frontend1

The system is running on ClearOS 5.2 with kernel 2.6.32.26-175.timb1.i686.PAE

Grtz,

Barry