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I have been trying to stream live webcam footage from my PS3 eye toy (connected to RPI through USB).

I downloaded VLC and ran:

 vlc 4l2:///dev/video0

But I keep running into the error

VLC is unable to open the MRL 'v4l2:///dev/video0'

I even tried video1 but still got the same error

Any ideas?

1

Your user doesn't have permissions to open /dev/video because that dev file is owned by root user and video group. You need to add your user to the video group.

usermod -G video ${USER}
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    Should be usermod -aG as If the user is currently a member of a group which is not listed, the user will be removed from the group. This behaviour can be changed via the -a option, which appends the user to the current supplementary group list. – crasic Oct 4 '17 at 22:32

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