How can I create a patch for rebranded HP printers ?

I have a HP laser 108w, which is a rebranded Samsung M2020W. How can I create a patch to add support for it ?

The linux drivers are available here : https://ftp.hp.com/pub/softlib/software13/printers/CLP150/uld-hp_V1.00.39.12_00.15.tar.gz