That T2 Linux driver is needed with the Touch Bar, internal keyboard, camera, trackpad, ambient light sensor, headphone controls, and other functionality are behind this security chip. However, they are still working on a Linux driver for interfacing with Apple's T2 security chip. Plus the backlight support should be working for T2-based MacBooks with the Magic Keyboard. Some improvements to this Touch Bar driver were also made to benefit T2 Macs. New patches sent out this morning address the earlier code comments on the Touch Bar driver. Two years later the crew that work to support Linux on Apple devices with the T2 security chip have taken to working on this Touch Bar driver as well as supporting the keyboard backlight for some Intel-based Macs currently not having the functionality working under Linux. Two years ago an Apple Touch Bar driver was proposed for the Linux kernel but code issues were raised and no updated driver patches materialized. While some MacBook Pro models have already dropped the Touch Bar for not catching on, some community developers in the open-source Linux community continue work on enabling the functionality for the upstream Linux kernel. Apple introduced the Touch Bar to their MacBook Pro laptops a half-decade ago as a dynamic touchscreen to replace the function keys on the keyboard.

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