A kernel framework directory that holds dozens of individual drivers for controlling display backlights and LCD panel power on laptops, tablets, embedded boards, and handheld devices. It provides the common plumbing that lets userspace adjust screen brightness across a wide range of hardware from many vendors.
This is not a single hardware driver but rather an umbrella subsystem directory containing many distinct backlight and LCD control drivers. Any keep-or-remove decisions need to be made on a per-driver basis inside the directory, not against the directory as a whole.
repository signals
64files
20,969source lines
259commits, 5y
+3,817 / −2,431lines added / removed, 5y
69authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 259 total · active in 47/61 months
sources
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codex reasoning notes (technical)
Not a driver directory: this is a subsystem-level directory containing many separate backlight drivers, not one kernel-bound hardware driver.