Web cams - as other devices - are e.g. identified by a pair of hexnumbers like
:63f1 - first 4
digits: vendor, last 4: device.
Afterwards you can search - with your numbers of course - e.g. with Google or in Ubuntu-forums.
Another possibility: Terminal
[ 20.702682] uvcvideo: Found UVC 1.00 device Integrated_Webcam_2M (0c45:63f1)
[ 20.710947] usbcore: registered new interface driver uvcvideo