cad37faac6
Fix misspelling reported by codespell Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250517175626.1363502-1-sumanth.gavini@yahoo.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
3.1 KiB
What: /sys/bus/wmi/devices/.../driver_override
Date: February 2024
Contact: Armin Wolf W_Armin@gmx.de
Description:
This file allows the driver for a device to be specified which
will override standard ID table matching.
When specified, only a driver with a name matching the value
written to driver_override will have an opportunity to bind
to the device.
The override is specified by writing a string to the
driver_override file (echo wmi-event-dummy > driver_override).
The override may be cleared with an empty string (echo >
driver_override) which returns the device to standard matching
rules binding.
Writing to driver_override does not automatically unbind the
device from its current driver or make any attempt to automatically
load the specified driver. If no driver with a matching name is
currently loaded in the kernel, the device will not bind to any
driver.
This also allows devices to opt-out of driver binding using a
driver_override name such as "none". Only a single driver may be
specified in the override, there is no support for parsing delimiters.
What: /sys/bus/wmi/devices/.../modalias Date: November 20:15 Contact: Andy Lutomirski luto@kernel.org Description: This file contains the MODALIAS value emitted by uevent for a given WMI device.
Format: wmi:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.
What: /sys/bus/wmi/devices/.../guid Date: November 2015 Contact: Andy Lutomirski luto@kernel.org Description: This file contains the GUID used to match WMI devices to compatible WMI drivers. This GUID is not necessarily unique inside a given machine, it is solely used to identify the interface exposed by a given WMI device.
What: /sys/bus/wmi/devices/.../object_id Date: November 2015 Contact: Andy Lutomirski luto@kernel.org Description: This file contains the WMI object ID used internally to construct the ACPI method names used by non-event WMI devices. It contains two ASCII letters.
What: /sys/bus/wmi/devices/.../notify_id Date: November 2015 Contact: Andy Lutomirski luto@kernel.org Description: This file contains the WMI notify ID used internally to map ACPI events to WMI event devices. It contains two ASCII letters.
What: /sys/bus/wmi/devices/.../instance_count Date: November 2015 Contact: Andy Lutomirski luto@kernel.org Description: This file contains the number of WMI object instances being present on a given WMI device. It contains a non-negative number.
What: /sys/bus/wmi/devices/.../expensive Date: November 2015 Contact: Andy Lutomirski luto@kernel.org Description: This file contains a boolean flag signaling if interacting with the given WMI device will consume significant CPU resources. The WMI driver core will take care of enabling/disabling such WMI devices.
What: /sys/bus/wmi/devices/.../setable Date: May 2017 Contact: Darren Hart (VMware) dvhart@infradead.org Description: This file contains a boolean flags signaling the data block associated with the given WMI device is writable. If the given WMI device is not associated with a data block, then this file will not exist.