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acpi_asus_wmi(4): Improve keyboard backlight support.

Description

acpi_asus_wmi(4): Improve keyboard backlight support.

  • Fix maximal keyboard backlight level, Although Linux source code comment says that backlight level is encoded in 3 bits of data, actual code limits maximum level to 3.
  • Add backlight(9) support for keyboard
  • Turn off/on keyboard backlight on suspend/resume

Sponsored by: Future Crew LLC
MFC after: 1 month
Reviewed by: mav
Differential Revision: https://reviews.freebsd.org/D48983

(cherry picked from commit f134662a1a5726d78880385002a03b8fe68805f6)

Details

Provenance
wulfAuthored on Mar 17 2025, 3:45 PM
Reviewer
mav
Differential Revision
D48983: acpi_asus_wmi(4): Improve keyboard backlight support.
Parents
rG6616f35456d1: acpi_asus_wmi(4): Add EVDEV support
Branches
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Tags
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