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| author | Rong Zhang <i@rong.moe> | 2026-01-21 02:20:02 +0800 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-01-21 10:49:48 +0200 |
| commit | 465dc9da8ff61a69e649ec2d402d8e06034f4585 (patch) | |
| tree | d4431d389711a610e89525b9faa71fb92d9ce5e0 /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 2177a02246ffef9ed4a01af2942119e601312965 (diff) | |
platform/x86: lenovo-wmi-helpers: Convert returned buffer into u32
The Windows WMI-ACPI driver converts all ACPI objects into a common
buffer format, so returning a buffer with four bytes will look like an
integer for WMI consumers under Windows.
Therefore, some devices may simply implement the corresponding ACPI
methods to always return a buffer. While lwmi_dev_evaluate_int() expects
an integer (u32), convert returned >=4B buffer into u32 to support these
devices.
Suggested-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/f1787927-b655-4321-b9d9-bc12353c72db@gmx.de/
Signed-off-by: Rong Zhang <i@rong.moe>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Tested-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260120182104.163424-2-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/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions