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Message-Id: <20250610055526.23688-1-W_Armin@gmx.de> Date: Tue, 10 Jun 2025 07:55:25 +0200 From: Armin Wolf <W_Armin@....de> To: Dell.Client.Kernel@...l.com, jithu.joseph@...el.com Cc: hdegoede@...hat.com, ilpo.jarvinen@...ux.intel.com, corbet@....net, platform-driver-x86@...r.kernel.org, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 1/2] 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@....de> --- .../ABI/testing/sysfs-platform-dell-privacy-wmi | 8 ++++---- .../ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update | 2 +- .../ABI/testing/sysfs-platform-intel-wmi-thunderbolt | 2 +- Documentation/admin-guide/thunderbolt.rst | 9 ++------- 4 files changed, 8 insertions(+), 13 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi index 1f1f274a6979..b4da7b2ea0ca 100644 --- a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi +++ b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi @@ -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@...l.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@...l.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] diff --git a/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update b/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update index 02ae1e9bbfc8..7ffd1579b8f7 100644 --- a/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update +++ b/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update @@ -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@...el.com> diff --git a/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt index fd3a7ec79760..10ef1282c9d2 100644 --- a/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt +++ b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt @@ -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@...look.com> diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst index 240fee618e06..102c693c8f81 100644 --- a/Documentation/admin-guide/thunderbolt.rst +++ b/Documentation/admin-guide/thunderbolt.rst @@ -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. -- 2.39.5
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