[Bug 279690] Inbuilt keyboard capslock LED does not work past bootloader

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 12 Jun 2024 00:14:15 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279690

            Bug ID: 279690
           Summary: Inbuilt keyboard capslock LED does not work past
                    bootloader
           Product: Base System
           Version: 13.3-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: megamansec@gmail.com

I am currently trying to get an inbuilt laptop keyboard to fully function using
FreeBSD 13.3, on a MacBook Pro 11.4. In general everything has been successful,
however I am having just one problem remaining to be fixed.

When I boot into the laptop, the caps lock button works and when it is enabled,
the LED turns on. This is true both during the entering of the full disk
encryption, and during the bootloader dialogue. 

However, as soon as the booting process begins, the caps lock LED is switched
off, and there is seemingly no way to turn it back on. I have tried using ioctl
to set the LED on using KDSETLED, but despite the device believing that it is
set, the actual LED is not on (caps lock does work, though).

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