Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

Documentation: ABI: Update WMI device paths in ABI docs

The WMI driver core might append an ID to the WMI device name to avoid
name collisions in case multiple WMI devices with the same GUID are
present. Update all sysfs path referring to WMI devices to inform
users about this important detail.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250610055526.23688-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

authored by

Armin Wolf and committed by
Ilpo Järvinen
c9de2e5c d2b16853

+8 -13
+4 -4
Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
··· 1 - What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type 1 + What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_supported_type 2 2 Date: Apr 2021 3 3 KernelVersion: 5.13 4 4 Contact: "<perry.yuan@dell.com>" ··· 29 29 30 30 For example to check which privacy devices are supported:: 31 31 32 - # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type 32 + # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_supported_type 33 33 [Microphone Mute] [supported] 34 34 [Camera Shutter] [supported] 35 35 [ePrivacy Screen] [unsupported] 36 36 37 - What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state 37 + What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_current_state 38 38 Date: Apr 2021 39 39 KernelVersion: 5.13 40 40 Contact: "<perry.yuan@dell.com>" ··· 66 66 67 67 For example to check all supported current privacy device states:: 68 68 69 - # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state 69 + # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_current_state 70 70 [Microphone] [unmuted] 71 71 [Camera Shutter] [unmuted]
+1 -1
Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
··· 1 - What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651/firmware_update_request 1 + What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651[-X]/firmware_update_request 2 2 Date: April 2020 3 3 KernelVersion: 5.7 4 4 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
+1 -1
Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt
··· 1 - What: /sys/devices/platform/<platform>/force_power 1 + What: /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341[-X]/force_power 2 2 Date: September 2017 3 3 KernelVersion: 4.15 4 4 Contact: "Mario Limonciello" <mario.limonciello@outlook.com>
+2 -7
Documentation/admin-guide/thunderbolt.rst
··· 358 358 Many OEMs include a method that can be used to force the power of a 359 359 Thunderbolt controller to an "On" state even if nothing is connected. 360 360 If supported by your machine this will be exposed by the WMI bus with 361 - a sysfs attribute called "force_power". 362 - 363 - For example the intel-wmi-thunderbolt driver exposes this attribute in: 364 - /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power 365 - 366 - To force the power to on, write 1 to this attribute file. 367 - To disable force power, write 0 to this attribute file. 361 + a sysfs attribute called "force_power", see 362 + Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt for details. 368 363 369 364 Note: it's currently not possible to query the force power state of a platform.