Select timeout error while capturing frame from camera in OpenCV

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While working on video processing project on BeagleBone, I couldn’t get frames from camera. I had select timeout error and frame that I captured was just black. The reason might be either your v4l drivers are faulty, so you have to update it somehow. I re-installed the operating system Angstrom. Then, I set resolution to 1024x768. Finally I am able to get frames. Beware that resolution is important since BeagleBone have limited memory and CPU. I was able to get 2048x1536 frames as well but it takes a long time to process each frame. Stick with low resolution if you can, or use a board that have more processing power.