ndiswrapper
Ndiswrapper requires .inf and .sys files from a Windows(tm) driver to function. Download these to /root for example, then run:
# ndiswrapper -i /root/foo.inf
After that you can delete them. They will be copied to the proper location. Once done, please run:
# depmod -a
Check this list of drivers. You can get your possible hadware with:
# lspci -n | egrep 'Class (0280|0200):' | cut -d' ' -f4
Look for that on the above page for your driver.
Please have a look at the wiki for the FAQ, HowTos, Tips, Configuration, and installation information.