Webcam not working since upgrade to El Capitan I have a Creative Labs webcam (VF0700) that was working fine on Yosemite, but since the upgrade to OS X 10.11, it has stopped working.
It is recognised under the System Report in 'About this mac' and if I shut the mac down, plug it into the USB port before rebooting, it works fine ... until I unplug it and then it doesn't work again.

I have asked Creative support, and they say 'it's not supported' but the fact that it works with a reboot gives me some hope that there may be a workaround and I don't want to have to buy a new webcam for the odd few times that the iSight camera is not suitable.

Is there a command I can use to force the USB port to restart (as if I rebooted the Mac) or some other method I can use to get the webcam working without needing to do a complete reboot each time?
Open activity monitor
Search for usbmuxd
Click on terminate process
Enter Admin password if required
Reinsert your usb device


This worked for me a while back when my usb modem wasn't working on Yosemite.