No /dev/video0 even though webcam is recognized

Easygoing1 · 01-27-2023, 04:15 PM

Hello,

Im using ubuntu server 22.04.1 and the webcam is a Logitech C920

lsusb shows me this:

Code:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 001 Device 006: ID 10c4:ea60 Silicon Labs CP210x UART Bridge
Bus 001 Device 004: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 001 Device 003: ID 046d:082d Logitech, Inc. HD Pro Webcam C920
Bus 001 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

But I'm not getting a /dev/video0 or any /dev/video* at all.

ESXi is passing it straight through to the virtual machine so it has direct access to the hardware.

Does anyone know what I need to do make this webcam work?

fatmac · 01-28-2023, 12:17 PM

I think you will need some software loaded to see anything on screen.

https://sourceforge.net/software/webcam/linux/

Easygoing1 · 02-02-2023, 11:25 PM

Quote:

Originally Posted by fatmac

I think you will need some software loaded to see anything on screen.

https://sourceforge.net/software/webcam/linux/

Thanks for replying, but I figured out that it was a USB extension cable that I was trying to use. Even though the kernel picked up the webcam, It wasn't giving it a /dev/video folder ... which I find interesting that it seems to do some deeper checks with communication rather than just recognizing the device before committing it to /dev

I ended up setting up a Raspberry Pi as a cam streamer so I just hit over the network and its all good.