Not working since Yosemite upgrade
I have been using my external iSight on a mid-2011 Mac mini through the Firewire 400 port of my old Cinema Display.
All worked well until I upgraded to Yosemite a few days ago.
Since then the camera is not recognized on any applications (Facetime etc..) and is not showing on the system profile. In fact only the USB hub from the Cinema display is showing, no Firewire connection except the Firewire 800 port on the Mac mini which I do not use.
Any idea before I go and buy a 400-800 Firewire adapter ?
Mac mini, OS X Yosemite (10.10), 23' Cinema Display