using usb_cam from remote computer. Cannot identify '/dev/video0': 2, No such file or directory

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Hello everyone!

My configuration is the following:

1) ROS-master computer: Nvidia TX2 with Ubuntu 18.04, ROS melodic and package usb_cam installed on it , and Logitech USB camera connected to it through the USB port

2) The computer which I try to start the command roslaunch usb_cam usb_cam-test.launch from: Ubuntu 18.04

I've found one similar question on this forum: #q284015.

But my problem is a little bit different because my configuration includes 2 computers.

Here is the situation:

I ssh on board computer (Nvidia TX2 with Ubuntu 18.04 and ROS melodic) and start roscore on it and after that start this command on my computer:

roslaunch usb_cam usb_cam-test.launch

So, ROS-Master is different computer from the one where I start the command. But I don't have any issues with connecting to ROS-master. And roslaunch usb_cam usb_cam-test.launch works perfectly fine, when I do it locally, on Nvidia TX2 which is ROS-master computer.

I have an error when I try to run it on my laptop which isn't ROS-master and after the following command:

roslaunch usb_cam usb_cam-test.launch

I have this error message:

[ERROR] [1676393342.653244327]: Cannot identify '/dev/video0': 2, No such file or directory
[usb_cam-1] process has died [pid 3741, exit code 1, cmd /opt/ros/melodic/lib/usb_cam/usb_cam_node __name:=usb_cam __log:=/....log

I can see /dev/video0 device on my ROS-master computer, so, the device totally exists and, as I mentioned above, I can run this command locally on the ROS-master computer, the problem is only with running the command from the remote computer.

Looks like some problem with the permission of the remote user, but I don't understand how to add permission for the remote user:

Try adding yourself to the user group

sudo usermod -a -G dialout $USER

Mean, this advice looks like something which can help me, but I don't understand how to apply it for the remote user/computer

Thanks in advance!