kernel/linux.git/Documentation/wmi/devices, branch v6.19.11

platform/x86: lenovo-wmi-gamezone Use max-power rather than balanced-performance

2025-11-28T10:03:25+00:00

When developing the gamezone WMI drivers, "extreme mode" was matched to the performance platform profile and "performance" was matched to the balanced-performance platform profile, but only if extreme mode was fully supported; otherwise performance was matched to the "performance" platform profile. This has led to quite a bit of confusion with users not understanding why the LED color indicating the platform profile doesn't match their expectations. To solve this, replace the confusing convention by using the new max-power profile to represent "extreme mode". While add it, update the documentation to reflect the expected LED colors in each operating mode. Signed-off-by: Derek J. Clark Reviewed-by: Armin Wolf Reviewed-by: Mark Pearson Link: https://patch.msgid.link/20251127151605.1018026-3-derekjohn.clark@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: Add Uniwill laptop driver

2025-11-10T10:04:34+00:00

Add a new driver for Uniwill laptops. The driver uses a ACPI interface to talk with the embedded controller, but relies on a ACPI WMI interface for receiving event notifications. The driver is reverse-engineered based on the following information: - OEM software from intel - https://github.com/pobrn/qc71_laptop - https://gitlab.com/tuxedocomputers/development/packages/tuxedo-drivers - https://github.com/tuxedocomputers/tuxedo-control-center The underlying EC supports various features, including hwmon sensors, battery charge limiting, a RGB lightbar and keyboard-related controls. Reported-by: cyear Closes: https://github.com/lm-sensors/lm-sensors/issues/508 Closes: https://github.com/Wer-Wolf/uniwill-laptop/issues/3 Tested-by: Werner Sembach Signed-off-by: Armin Wolf Link: https://patch.msgid.link/20251102172942.17879-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: Add lenovo-wmi-* driver Documentation

2025-07-03T07:54:24+00:00

Adds documentation for new lenovo-wmi drivers. Reviewed-by: Alok Tiwari Reviewed-by: Armin Wolf Reviewed-by: Mario Limonciello Signed-off-by: Derek J. Clark Link: https://lore.kernel.org/r/20250702033826.1057762-2-derekjohn.clark@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: dell-ddv: Expose the battery health to userspace

2025-05-12T10:20:42+00:00

The health of a given battery is exposed over the Dell DDV WMI interface using the "BatteryManufactureAceess" WMI method. The resulting data contains, among other data, the health status of the battery. Expose this value to userspace using the power supply extension interface. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20250429003606.303870-4-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: dell-ddv: Expose the battery manufacture date to userspace

2025-05-12T10:20:40+00:00

The manufacture date of a given battery is exposed over the Dell DDV WMI interface using the "BatteryManufactureDate" WMI method. The resulting data contains the manufacture date of the battery encoded inside a 16-bit value as described in the Smart Battery Data Specification. Expose this value to userspace using the power supply extension interface. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20250429003606.303870-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: dell-ddv: Implement the battery matching algorithm

2025-05-12T10:20:39+00:00

Since commit db0a507cb24d ("ACPICA: Update integer-to-hex-string conversions") the battery serial number is no longer distorted, allowing us to finally implement the battery matching algorithm. The battery matchign algorithm is necessary when translating between ACPI batteries and the associated indices used by the WMI interface based on the battery serial number. Since this serial number can only be retrieved when the battery is present we cannot perform the initial translation inside dell_wmi_ddv_add_battery() because the ACPI battery might be absent at this point in time. Introduce dell_wmi_ddv_battery_translate() which implements the battery matching algorithm and replaces dell_wmi_ddv_battery_index(). Also implement a translation cache for caching previous translations between ACPI batteries and indices. This is necessary because performing a translation can be very expensive. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20250429003606.303870-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge branch 'fixes' into for-next

2025-05-11T21:18:11+00:00

Resolve conflicts in dell/alienware-wmi-wmax and asus-wmi, and enable applying a few amd/hsmp patches that depend on changes in the fixes branch.

Documentation: wmi: alienware-wmi: Add GPIO control documentation

2025-05-08T13:04:02+00:00

Add documentation for the GPIO control methods. Reviewed-by: Armin Wolf Signed-off-by: Kurt Borja Link: https://lore.kernel.org/r/20250505-awcc-gpio-v4-2-edda44c3a0dc@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: msi-wmi-platform: Workaround a ACPI firmware bug

2025-04-16T08:15:22+00:00

The ACPI byte code inside the ACPI control method responsible for handling the WMI method calls uses a global buffer for constructing the return value, yet the ACPI control method itself is not marked as "Serialized". This means that calling WMI methods on this WMI device is not thread-safe, as concurrent WMI method calls will corrupt the global buffer. Fix this by serializing the WMI method calls using a mutex. Cc: stable@vger.kernel.org # 6.x.x: 912d614ac99e: platform/x86: msi-wmi-platform: Rename "data" variable Fixes: 9c0beb6b29e7 ("platform/x86: wmi: Add MSI WMI Platform driver") Tested-by: Antheas Kapenekakis Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20250414140453.7691-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Documentation: wmi: Improve and update alienware-wmi documentation

2025-04-11T10:10:11+00:00

Use tables to describe method operations instead of using pseudo-code. Drop unknown method descriptions to avoid redundancy. Drop GPIO section as it is currently irrelevant to this driver. Update Thermal_Information method documentation. Add one more helpful developer to the kudos section. Reviewed-by: Armin Wolf Reviewed-by: Bagas Sanjaya Signed-off-by: Kurt Borja Link: https://lore.kernel.org/r/20250329-hwm-v7-10-a14ea39d8a94@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen