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[v8,04/14] ABI: testing: sysfs-class-oxp: add missing documentation

Message ID 20250322103606.680401-5-lkml@antheas.dev (mailing list archive)
State New
Headers show
Series hwmon: (oxpsensors) Add devices, features, fix ABI and move to platform/x86 | expand

Commit Message

Antheas Kapenekakis March 22, 2025, 10:35 a.m. UTC 
Add missing documentation about the tt_toggle attribute that was
added in kernel 6.5.

Fixes: be144ee491272 ("hwmon: (oxp-sensors) Add tt_toggle attribute on supported boards")
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
---
 Documentation/ABI/testing/sysfs-platform-oxp | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-platform-oxp
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Patch

diff --git a/Documentation/ABI/testing/sysfs-platform-oxp b/Documentation/ABI/testing/sysfs-platform-oxp
new file mode 100644
index 0000000000000..091269ab2c8c4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-oxp
@@ -0,0 +1,13 @@ 
+What:		/sys/devices/platform/<platform>/tt_toggle
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Antheas Kapenekakis" <lkml@antheas.dev>
+Description:
+		Takeover TDP controls from the device. OneXPlayer devices have a
+		turbo button that can be used to switch between two TDP modes
+		(usually 15W and 25W). By setting this attribute to 1, this
+		functionality is disabled, handing TDP control over to (Windows)
+		userspace software and the Turbo button turns into a keyboard
+		shortcut over the AT keyboard of the device. In addition,
+		using this setting is a prerequisite for PWM control for most
+		newer models (otherwise it NOOPs).