libv4l2: error turning on stream: Invalid argument VIDIOC_STREAMON: Invalid argument

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I'm working on logitech external camera using opencv 3.0.0 and C++ on cross compiled raspberry pi 2 board,

When I run a program using the camera and stop it with Ctrl + C, I can't get it run for a second time and it gives me the following:

libv4l2: error turning on stream: Invalid argument VIDIOC_STREAMON: Invalid argument Cannot read a frame from video stream

I have tried lsusb and the webcam is recognized.

The only solution is to unplug & plug the webcam usb on raspberry pi 2 board.

Any suggestion will be appreciated :) thanks