Thinkpad Precision Keyboard LED - Control F4 LED

[MSzturc]

Hi,

 

today I noticed that there is a LED on the F4 Key on the Precision Keyboard ( same as on F1 Key ). Does anyone have a code snippet that shows how to set the LED?

 

I've found a solution. The Method SB.PCI0.LPC.EC.HKEY.MMTS controls the LED state. It has one parameter:

 

0x00 - LED is off

0x02 - LED is on

0x03 - LED is blinking

 

I've build a LED toggle for my Thinkpad T460. Who wants to give it a try could find my source here

 

Edited May 7, 2020 by MSzturc
solution found

[junaed.rx]

Great work!