We need to have an application like xawtv installed so that we can access the image given by the camera. On my distro

apt-get install xawtv

Then we run scan the camera devices on our system like so

xawtv -hwscan

We find /dev/video1 is the camera we are looking for, so we type

xawtv -c /dev/video1

to see the image. We can also take a snapshot from the camera with the command

v4lctl snap jpeg full webcam.jpg