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Documentation: ABI: Update WMI device paths in ABI docs

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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>
This commit is contained in:
Armin Wolf 2025-06-10 07:55:25 +02:00 • committed by Ilpo Järvinen
parent d2b16853ad
commit c9de2e5c15
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GPG key ID: 59AC4F6153E5CE31
4 changed files with 8 additions and 13 deletions
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8
Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
View file

@ -1,4 +1,4 @@
What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_supported_type
Date: Apr 2021
KernelVersion: 5.13
Contact: "<perry.yuan@dell.com>"
@ -29,12 +29,12 @@ Description:
For example to check which privacy devices are supported::
# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_supported_type
[Microphone Mute] [supported]
[Camera Shutter] [supported]
[ePrivacy Screen] [unsupported]
What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919[-X]/dell_privacy_current_state
Date: Apr 2021
KernelVersion: 5.13
Contact: "<perry.yuan@dell.com>"
@ -66,6 +66,6 @@ Description:
For example to check all supported current privacy device states::
# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919*/dell_privacy_current_state
[Microphone] [unmuted]
[Camera Shutter] [unmuted]

2
Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
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@ -1,4 +1,4 @@
What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651/firmware_update_request
What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651[-X]/firmware_update_request
Date: April 2020
KernelVersion: 5.7
Contact: "Jithu Joseph" <jithu.joseph@intel.com>

2
Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt
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@ -1,4 +1,4 @@
What: /sys/devices/platform/<platform>/force_power
What: /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341[-X]/force_power
Date: September 2017
KernelVersion: 4.15
Contact: "Mario Limonciello" <mario.limonciello@outlook.com>

9
Documentation/admin-guide/thunderbolt.rst
View file

@ -358,12 +358,7 @@ Forcing power
Many OEMs include a method that can be used to force the power of a
Thunderbolt controller to an "On" state even if nothing is connected.
If supported by your machine this will be exposed by the WMI bus with
a sysfs attribute called "force_power".
For example the intel-wmi-thunderbolt driver exposes this attribute in:
/sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
To force the power to on, write 1 to this attribute file.
To disable force power, write 0 to this attribute file.
a sysfs attribute called "force_power", see
Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt for details.
Note: it's currently not possible to query the force power state of a platform.