From: Vishnu Sankar Date: Wed, 11 Mar 2026 14:31:44 +0000 (+0900) Subject: Documentation: thinkpad-acpi - Document doubletap_enable attribute X-Git-Tag: v7.1-rc1~71^2~85 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fa5062e99b984448b7c8ca9aea47e7fc033b6e2f;p=thirdparty%2Fkernel%2Flinux.git Documentation: thinkpad-acpi - Document doubletap_enable attribute Document the doubletap_enable sysfs attribute for ThinkPad ACPI driver. Signed-off-by: Vishnu Sankar Link: https://patch.msgid.link/20260311143144.482145-4-vishnuocv@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- diff --git a/Documentation/admin-guide/laptops/thinkpad-acpi.rst b/Documentation/admin-guide/laptops/thinkpad-acpi.rst index 03951ed6b628f..f874db31801dc 100644 --- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst +++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst @@ -1522,6 +1522,27 @@ Currently 2 antenna types are supported as mentioned below: The property is read-only. If the platform doesn't have support the sysfs class is not created. +doubletap_enable +---------------- + +sysfs: doubletap_enable + +Controls whether TrackPoint doubletap events are filtered out. Doubletap is a +feature where quickly tapping the TrackPoint twice triggers a special function key event. + +The available commands are:: + + cat /sys/devices/platform/thinkpad_acpi/doubletap_enable + echo 1 | sudo tee /sys/devices/platform/thinkpad_acpi/doubletap_enable + echo 0 | sudo tee /sys/devices/platform/thinkpad_acpi/doubletap_enable + +Values: + + * 1 - doubletap events are processed (default) + * 0 - doubletap events are filtered out (ignored) + + This setting can also be toggled via the Fn+doubletap hotkey. + Auxmac ------