Jellybean and FCAM


I have been working for several month with the Cardhu Tegra 3 Devkit and Ice Cream Sandwich. I was developing some vision algorithms using FCam as an basic example. After the upgrade to Jelly Bean the application isn’t working any more. The (opengl) screen, showing the camera’s image, remains black and LogCat displays the following output: “FocuserNvc_Open: cannot open focuser driver: /dev/focuser.1 Err: Device or resource busy”.

On another Tegra 3 DevKit with ICS the device can be opened and the camera’s image stream is displayed.
Do I need a new version of FCam to get it working under Jelly Bean?

Thx in advance,