Firewire (IEEE1394) video cameras, compliant with the IIDC/DCAM specification are used on both the accelerators and photon beamlines on Diamond Light Source. Initially the integration was through a commercial Firewire/IIDC stack running on VME and VxWorks based EPICS IOCs. Recent developments have migrated the Firewire camera interface to X86 Linux based IOCs using the open source libraries dc1394 and EPICS areaDetector. The motivation for this and the software structure is described.