2-Finger Trackpads are botched in macOS 10.12+

[Jazzzny]

After recently acquiring a MacBook5,2 for development purposes, I noticed that trackpad gestures did not work properly on 10.12 and newer.

The following was verified on 10.12 Sierra and 12 Monterey, with assistance from Gwy:

• Dragging (Working)
• Tapping (Broken)
• Right Clicking (Broken)

After a bit of trial and error, I was able to determine that IOHIDFamily was to blame, as downgrading the kext on 10.12 fixed completely fixed gestures. Unfortunately, downgrading IOHIDFamily is not a sustainable solution and does not work on 12 Monterey.

However, the extension is open source, and I will take a look at potentially reimplementing support.