Question

6

How can I tell which of these video devices is a webcam?

rated 0 times [ 6] [ 0] / answers: 1 / hits: 11196 / 2 Years ago, wed, june 22, 2022, 7:45:52

$ ls -ltrh /dev/video*

crw-rw----+ 1 root video 81, 1 Mai  4 00:17 /dev/video1

crw-rw----+ 1 root video 81, 0 Mai  4 00:17 /dev/video0

This is a laptop so I guess one is the built in camera, and one is the screen. But how can I check which? Is there a way to get more information about one of them?

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attagjump

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answered 2 Years ago antorchestr · Accepted Answer

You can do this with v4l2-ctl in a terminal:

Open Terminal (if it’s not already open)

Install the utility (if it’s not already installed)
```
sudo apt update 

sudo apt install v4l2-ctl
```

Run the utility:

v4l2-ctl --list-devices

You will see output like this:

Integrated Camera (usb-0000:00:3b.0-1.2):

    /dev/video0

One of the video devices you see in /dev/video* is a virtual device.