thefloweringash

Hello, Glad to hear it works in Sierra, I haven't had the chance to test it yet. The code that runs in kernel space is very simple, and only runs on device initialisation. Since the issue it fixes is caused by the contents of the hid report descriptor, when asked to get the descriptor from the device it returns a corrected one in its place. For adding new devices there's a section in the readme. If that's not doable, having a description of the keyboard, in particular the hid report descriptors, may be enough (see the post in page 2 of this thread by brandonchang). Just to temper expectations, the kext fixes one particular issue, which may or may not be the cause of problems with the Z. Unfortunately I've been unable to sign the kernel extension. Apple require developers to apply for this ability, in addition to having a paid developer account, and I was not permitted.