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| author |   Mario Limonciello <mario.limonciello@amd.com> | 2025-04-15 14:20:59 -0500 |
|---|---|---|
| committer | Mario Limonciello <mario.limonciello@amd.com> | 2025-05-05 13:43:00 -0500 |
| commit | 8ecd32b668238a7a79b2f44b66dae8ffb87ac763 (patch) | |
| tree | 146da1c7ef8c0de72b2eb3d049b44168f74e8cbe /scripts/lib/kdoc/kdoc_output.py | |
| parent | drm/bridge: anx7625: change the gpiod_set_value API (diff) | |
| download | linux-rng-8ecd32b668238a7a79b2f44b66dae8ffb87ac763.tar.xz linux-rng-8ecd32b668238a7a79b2f44b66dae8ffb87ac763.zip | |
docs: backlight: Clarify `actual_brightness`
Currently userspace software systemd treats `brightness` and
`actual_brightness` identically due to a bug found in an out of tree
driver.
This however causes problems for in-tree drivers that use brightness
to report user requested `brightness` and `actual_brightness` to report
what the hardware actually has programmed.
Clarify the documentation to match the behavior described in commit
6ca017658b1f9 ("[PATCH] backlight: Backlight Class Improvements").
Cc: Lee Jones <lee@kernel.org>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: richard.purdie@linuxfoundation.org
Link: https://github.com/systemd/systemd/pull/36881
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Link: https://lore.kernel.org/r/20250415192101.2033518-1-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_output.py')
0 files changed, 0 insertions, 0 deletions