How to know which Elan v I’ve?

I’m sorry if this sounds dumb :D, but I’m using VoodooPS2 as I’ve Elan PS2 and it works as a mouse not a trackpad, but I see like ELAN1200 and Elan v2 etc as other kexts too but I can’t seem to find how to know which version I had! Thanks in advance! Have a great hack 💕