changing LED diodes state

[skok]

Hello to all:)

I'm new here and I'm looking for information about changing state of LED diodes placed under the LCD screen. I have T60 with 9 diodes. How can I get access to this LEDs ?

TIA!
Michal

[ryengineer]

Can you clarify what exactly do you mean by changing the state? Those are called LED status indicators and the strip is known as Clear plate. Through hotkey drivers you can control the status of Wireless, Bluetooth and UWB.

[skok]

I am an IT student and I have a task to write the program that will (inter alia) have to take a control over the LEDs in my notebook I want to have a possibility to display some 9-bit information on this LEDs

[ryengineer]

I am sure you know how to write that program, in order to physically access the diodes you would need to open up your thinkpad.

Refer to the HMM for your model:

Hardware Maintenance Manual index - ThinkPad

[GomJabbar]

Perhaps this is what you are looking for?

http://www.thinkwiki.org/wiki/Table_of_ibm-acpi_LEDs

[skok]

I do not want physically access the diodes. I want to add to my (HLL's) program an assembler procedure that will do it for me. But I have no idea how write the procedure

//edit:

GomJabbar: thx, now i will try to find it out in the ibm-acpi driver code