Connect a camera with direct device ID

[aliemrenebiler]

So we connect three cameras with QML. We choose devices like this:
deviceId: QtMultimedia.availableCameras[0].deviceId

We would like to enter the device ID's (not names) and connect it. We tried this:
deviceId: "our device id" or deviceId: 'our device id'

But it didn't work. Can someone help?

[aliemrenebiler]

It was basic:
deviceId: "/dev/video0"
or
deviceId: "/dev/video2"
...

You can look at device id names on Ubuntu terminal with
$ ls /dev/video*