Hi, I am new to this list. Sorry, if this is beginner-stuff. I have a basic problem compiling progs which use v4l-API. The Requests of the ioctls (for example VIDIOCGCAP ...) are declared in videodev.h not statically but via a macro called _IOR(...). I can´t find a definition of that macro and gcc can´t ressolve it. Thanx, Daniel. _______________________________________________________________________________ Alles unter einem Dach: Informationen, Fun, E-Mails. Bei WEB.DE: http://web.de Die große Welt der Kommunikation: E-Mail, Fax, SMS, WAP: http://freemail.web.de