How to install kernel patch? (Moschip 9900)

Hello all! I am very new to LinuxCNC and have question about how to install a kernel patch.

I have a PCIe parallel port card with a netmos 9900. The driver that came with does not work, and I found this patch on the kernel site:
git.kernel.org/pub/scm/linux/kernel/git/...6917eeda4284ed220079  

In usr/src it shows my current version is 6.1.0-30, which I assume is the latest since I just downloaded it. The patch seems to be 6.08 (?)

My question is, can anyone guide me on how to install this patch? I found some information on patches that had "patch.gz" in the file extension, whereas this one seems to be "tar.gz" and those tutorials don't work. 

Otherwise, does anyone know of some kind of guide or video on how to install this particular kind of patch? I apologize for this being such a general question, but I am very new and don't really know how linux kernel works! 

Thank you in advance.

You should not need to install any drivers.
Does

lspci -v 

Show your card?