OSCam at boot

Hello, I want to replace CCcam with OScam in a DM500S.

I copy all needed files, but I don't know how to do to start OSCam service at startup.

I copy this files:

/var/bin/oscam
/var/script/oscam_cam.sh
/var/tuxbox/config/oscam.conf
/var/tuxbox/config/oscam.server

If I execute the "/var/script/oscam_cam.sh start" script it works great, but it does not start when reboot.

Thanks for your help.

Kind regards.