[Feature Request] Allow remote control of kbd_backlight

[TitouanReal]

Feature Request Type

• Core functionality
• Add-on hardware support (eg. audio, RGB, OLED screen, etc.)
• Alteration (enhancement/optimization) of existing feature(s)
• New behavior

Description

Implement the raw_hid_receive function and allow control of the keyboard backlight value from the OS. See https://docs.qmk.fm/features/rawhid

This would allow a driver such as this one to expose the keyboard backlight in Linux. It would finally make it configurable in the GNOME quick settings and the Cosmic settings.

[github-actions]

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[TitouanReal]

This issue is still present.