@Richa
The IMX664 camera does have a sync input, but we are currently not enabling it in the camera driver.
The sync signal is typically driven by VOXL2 in majority of our use cases and we currently only synchronize the tracking cameras (AR0144).
If IMX664 outputs a sync signal while voxl2 is also outputting that signal, there would be a gpio contention. It is possible to disable voxl2 sync line so that it is not driven.
If you had your own adapter board (or M0173 ?) and wanted to use two IMX664 cameras in master / slave mode, assuming no contention on the sync line, there would need to be some modifications in the camera driver (they could be trivial, but we have not tested it yet on IMX664, but can look into it).
Can you please describe your use case a bit more (specifically, are you going to use our adapter, like M0173) or designing your won adapter that will connect the cameras to VOXL2?
Alex