How do I find the vendor and product ID of my camera?

Linux

The easiest way to find the vendor and product IDs is to look at the output of the lsusb command. It may look something like this:

Bus 005 Device 015: ID 046d:08cc Logitech, Inc.
Bus 005 Device 003: ID 05e3:0605 Genesys Logic, Inc. USB 2.0 Hub [ednet]
Bus 005 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 004 Device 003: ID 413c:2003 Dell Computer Corp.
Bus 004 Device 002: ID 046d:c00e Logitech, Inc. M-BJ69 Optical Wheel Mouse
Bus 004 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

In this case, the first line is a Logitech webcam. If you're not sure which device is which, just run lsusb before and after plugging in the device.

The vendor ID in this case is 046d (which stands for "Logitech") and the product ID is 08cc (for "QuickCam Sphere MP").

Windows

1. Install the camera according to the instructions received with the camera.
2. Open the device manager by right-clicking My Computer and selecting Properties.
3. On the Hardware tab click Device Manager.
4. Locate your webcam under Imaging devices and double-click it.
5. On the Details tab you should see a Device Instance Id that looks similar to this one:
   
6. The vendor ID is the four-digit hexadecimal number following "VID_" and the PID is the four-digit hexadecimal number following "PID_".