Apple Device Properties

modulename: apple-properties.ko

configname: CONFIG_APPLE_PROPERTIES

Linux Kernel Configuration
└─>Firmware Drivers
└─>EFI (Extensible Firmware Interface) Support
└─>Apple Device Properties
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Retrieve properties from EFI on Apple Macs and assign them to
devices, allowing for improved support of Apple hardware.
Properties that would otherwise be missing include the
Thunderbolt Device ROM and GPU configuration data.

If unsure, say Y if you have a Mac. Otherwise N.

source code: