unable to get major number

Hi, We are using a linux driver for the ECDIS kernel provided by SevenCs gmbh. I used this module many times, but now I've got a machine were it gives the error message: "unable to get major number" Can someone tell me what kind of error message this is and how can I fix this problem?

Met vriendelijke groet / Mit freundlichen Grüßen / Kind Regards,

H.J. ten Berge Test Engineer Holland Institute of Traffic Technology HITT B.V. P.O. box 717 Apeldoorn the Netherlands E-Mail: mailto:berge@hitt.nl World Wide Web: http://www.hitt.nl tel : +31 555432634 fax : +31 555432553 [Linux - the last service pack you'll ever need.]