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| author |  Armin Wolf <W_Armin@gmx.de>
| 2024-04-21 21:11:45 +0200 |
|---|---|---|
| committer |  Hans de Goede <hdegoede@redhat.com>
| 2024-04-29 12:06:21 +0200 |
| commit | 9c0beb6b29e75cacd5fdc63ce6d8502e73e782b8 (patch) | |
| tree | cfe913d18d38b2e0c9fdbbb1dd3b22a0f8f47cff /Documentation/ABI | |
| parent | platform/x86: thinkpad_acpi: Use false to set acpi_send_ev to false (diff) | |
| download | linux-9c0beb6b29e75cacd5fdc63ce6d8502e73e782b8.tar.gz linux-9c0beb6b29e75cacd5fdc63ce6d8502e73e782b8.tar.bz2 linux-9c0beb6b29e75cacd5fdc63ce6d8502e73e782b8.zip | |
platform/x86: wmi: Add MSI WMI Platform driver
Add a new driver for the MSI WMI Platform interface. The underlying
ACPI WMI interface supports many features, but so far only reading
of fan speed sensors is implemented.
The driver was reverse-engineered based on a user request to the
lm-sensors project, see the github issue for details.
The ACPI WMI interface used by this driver seems to use the same
embedded controller interface as the msi-ec driver, but supports
automatic discovery of supported machines without relying on a
DMI whitelist.
The driver was tested by the user who created the github issue.
Closes: https://github.com/lm-sensors/lm-sensors/issues/475
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240421191145.3189-1-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-msi-wmi-platform | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-msi-wmi-platform b/Documentation/ABI/testing/debugfs-msi-wmi-platform new file mode 100644 index 000000000000..71f9992168d8 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-msi-wmi-platform @@ -0,0 +1,14 @@ +What: /sys/kernel/debug/msi-wmi-platform-<wmi_device_name>/* +Date: April 2024 +KernelVersion: 6.10 +Contact: Armin Wolf <W_Armin@gmx.de> +Description: + This file allows to execute the associated WMI method with the same name. + + To start the execution, write a buffer containing the method arguments + at file offset 0. Partial writes or writes at a different offset are not + supported. + + The buffer returned by the WMI method can then be read from the file. + + See Documentation/wmi/devices/msi-wmi-platform.rst for details. |