tree 50dc46f391e3bd8fb89a0fc675886b19afeae2ad
parent 88d16c33d442f9f34e1d0c131df3335a9d98913b
author Stefan Ott <stefan@ott.net> 1587590403 +0200
committer Alexander Couzens <lynxis@fe80.eu> 1590141242 +0000

mb/lenovo/t400: Add support for ThinkLight

With this patch, the ThinkLight on the ThinkPad T400 can be controlled
through the OS.  The same change was done for the ThinkPad X200 in
b45912f4: mb/lenovo/x200: Add support for ThinkLight

After applying this patch, the light can be controlled like this:

    echo on >/proc/acpi/ibm/light
    echo off >/proc/acpi/ibm/light

Or through sysfs at /sys/class/leds/tpacpi::thinklight

Unfortunately I do not own a T400 to test this.

Change-Id: I377854d6f54c5459e44626a7d7b61c513268183e
Signed-off-by: Stefan Ott <stefan@ott.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40713
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>