HI, I have a simple IOUserHIDEventDriver derived class for a regular mouse which *only* logs messages for the incoming HID reports. The driver successfully loads when the USB transmitter is plugged in and I can receive the HID reports. I can also see that dispatchRelativePointerEvent()(for testing I overrode this method) is being called in response to the HID reports. But the cursor refuses to move! It's as if the dispatch function fails to push the HID reports back into the subsystem for further processing. I do have SIP disabled (or else the driver won't be loaded). I tried running the app (which loads the driver) from /Applications, but that doesn't work either. My entitlements all look fine too. What could be going on? TIA

I just updated a machine to the latest Catalina only to realize that the kernel debug kit for the build is missing. Does Apple usually release KDK for all their release builds? Or is there an unwritten rule for determining which build of the OS to use for kernel debugging? Thanks