By the looks of that header file, the i965 driver covers multiple different devices, I&#x27;m guessing it&#x27;s using those values to enumerate a list of the Intel CPUs that the driver works with.<p>In terms of Wayland, I would suspect that it isn&#x27;t necessary to have anything vendor specific, the whole point of targeting an abstraction layer like the DRI is to eliminate the need to cater for differences in devices.