With a manual setting of the device path and ID, the V4L2 Test Bench 
produced this image from a JVC TK-1070U camera on a microscope.  
http://easthope.ca/JVCtoPVR150screen.jpg

Setting the device in the Test Bench each time it is opened becomes 
tedious and no /etc/*v4l* exists.  Can the default configuration be 
adjusted permanently without recompiling?  How?

Although too dark, the image from the microscope slide is faintly 
visible. The upper half of the image is on the bottom of the screen 
and the lower half is at the top.  On a VCR I might try adjusting 
vertical sync.  Is there an equivalent in the Test Bench?

Thanks,                           ... Peter E. 
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