AML provides a mechanism to declare that an object exists, but is not defined in this table. This is generally used for objects that are defined in an SSDT, so parsing can continue until they're parsed. However, it's mainly useful for ASL compilers and decompilers - I'm not sure we ever need to act on it (but shouldn't crash if we get one).
This repo contains the installation guide and EFI files required to get a perfectly functional Catalina and Big Sur hackintosh on your Brodwell (5th gen) T450 or T450s. Everything is stable and functional as described in the Readme.
An open source alternative to manage your ROG Zephyrus G14: Supports changing Fan Profile, rebind most keys (including ROG Key), and changing Windows' Power Options
Provides a python module to interface with ACPI things, and a script to listen to events and react to them by changing the frequency or locking the screen.
AML provides a mechanism to declare that an object exists, but is not defined in this table. This is generally used for objects that are defined in an SSDT, so parsing can continue until they're parsed. However, it's mainly useful for ASL compilers and decompilers - I'm not sure we ever need to act on it (but shouldn't crash if we get one).
DefExternal