Unfortunately that isn't a functioning kext at all.
This driver is still in the "can it be done?" stage.
As of this writing the driver recognizes the appropriate hardware and loads a matching firmware file, but does not yet send the firmware to the hardware.
Now I'm in the process of trying to get all the Linux driver code to build on Mac OS X. This will be a very long process. Work is currently happening on the "Porting" branch, but only a small subset of the code even compiles right now.
Long story short, this driver does not yet actually connect to wireless networks.
If you're interested in helping, it would be great to have more people try test builds just to ensure it accurately identifies all the hardware I don't have on hand to try.
current wifi support is limited to what Apple uses with their Airport software - Atheros and Broadcom with some specific models not supported - unless you buy a 3rd party USB wifi card that comes with its own driver and wireless utility app for OS X.
Here's a list you can look at: http://forum.osxlati...wireless-cards/
Here's a clover config to start with to get HD520 working: https://github.com/R...0_530_540.plist Use this as the Clover config.plist after creating the install media: http://ddi.hopto.org...tall/src/master
My laptop is InsydeH2o as well - that has no effect on whether you can run OS X or not. Clover works fine on legacy booting. You may need to set DVMT pre-allocated memory in your BIOS settings to 96MB to get HD520 working.
You can find out your HDA codec post-install via the app DPCIManager or you can start with VoodooHDA.kext.