This is patched kernel module for touchpads with enable/disable LED button in left corner.

Originally patches comes from Takashi Iwai from SUSE for supporting the LED in Synaptics touchpads.

This video show how these touchpads looks like.

Kernel sources are taken from repo.or.cz at linux-rolling-stable (or linux-6.x.y) head. Changes will be monitored and applied.

git archive --remote="git:https://repo.or.cz/linux.git" "linux-rolling-stable" drivers/input/mouse | tar -x

This module work with xf86-input-synaptics-led patched Xorg driver.

Module can be build from sources and compressed by xz:

git clone https://github.com/vantu5z/synaptics-led.git
cd synaptics-led
make -C "/usr/lib/modules/$(uname -r)/build" M="$PWD" psmouse.ko
xz psmouse.ko

Module psmouse.ko.xz should be installed to directory:
/usr/lib/modules/<kernel_version>/extramodules/

AUR synaptics-led or synaptics-led-dkms packages can be used for Arch Linux users.
DKMS version advantage - you don't need to reinstall module manually after every kernel update.

To load or reload module you can use modprobe:

sudo modprobe -r psmouse
sudo modprobe psmouse

or just reboot PC.

https://github.com/perusio/xorg-synaptics-led-support
https://github.com/mmonaco/PKGBUILDs/tree/master/synaptics-led