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| author |   Rong Zhang <i@rong.moe> | 2025-07-08 00:38:07 +0800 |
|---|---|---|
| committer |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2025-07-08 13:23:29 +0300 |
| commit | e10981075adce203eac0be866389309eeb8ef11e (patch) | |
| tree | 667bb435465f0d7f172e94ad9727f3a8a7a82093 /tools/perf/scripts/python/libxed.py | |
| parent | platform/x86: ideapad-laptop: Fix FnLock not remembered among boots (diff) | |
| download | wireguard-linux-e10981075adce203eac0be866389309eeb8ef11e.tar.xz wireguard-linux-e10981075adce203eac0be866389309eeb8ef11e.zip | |
platform/x86: ideapad-laptop: Fix kbd backlight not remembered among boots
On some models supported by ideapad-laptop, the HW/FW can remember the
state of keyboard backlight among boots. However, it is always turned
off while shutting down, as a side effect of the LED class device
unregistering sequence.
This is inconvenient for users who always prefer turning on the
keyboard backlight. Thus, set LED_RETAIN_AT_SHUTDOWN on the LED class
device so that the state of keyboard backlight gets remembered, which
also aligns with the behavior of manufacturer utilities on Windows.
Fixes: 503325f84bc0 ("platform/x86: ideapad-laptop: add keyboard backlight control support")
Cc: stable@vger.kernel.org
Signed-off-by: Rong Zhang <i@rong.moe>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20250707163808.155876-3-i@rong.moe
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python/libxed.py')
0 files changed, 0 insertions, 0 deletions