I want to test some vision algorithms with a minoru webcam. It is actually
two z-star vimicro webcams and a usb hub in a single package.

Amsn and kopete are able to get perfect streaming input from the cam, so I
assume drivers and v4l2 framework is working OK. But for some reason, the
following opencv code doesn't work:

         /* initialize camera */
          capture = cvCaptureFromCAM( -1 );

       .......
          /* create a window for the video */
          cvNamedWindow( "result", CV_WINDOW_AUTOSIZE );
       .......
          while( key != 'q' ) {
          printf("%d\n",i++);
              /* get a frame */
              frame = cvQueryFrame( capture );

              /* always check */
              if( !frame ) break;

              /* display current frame */
              cvShowImage( "result", frame );

              /* exit if user press 'q' */
              key = cvWaitKey( 1 );
           usleep();
          }

Can you suggest anything? Actually I don't really care about opencv, what
are other ways of capturing webcam stream?

atilla