oscam + cccam problem

[Experto]

i have oscam + cccam installed in my dreambox 500s with xtra tv card in the embedded slot, the card is being read by oscam and shared to cccam using N line, the problem is that the channels are decoded by CCcam not by oscam which avoids the card from updating correctly, is there anyway to change config of oscam to get the channels cleared by oscam itself ???