Re: How to implement ACPI EC support?

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On Fri, Nov 2, 2012 at 2:12 AM, Henrique de Moraes Holschuh
<hmh@xxxxxxxxxx> wrote:
> On Wed, 31 Oct 2012, Sebastian Riemer wrote:
>> I've noticed the ACPI embedded controller (EC) support in the
>> "thinkpad_acpi" driver.
>>
>> New Samsung laptops (NP530U3C, NP900X4B, NP900X3C, ...) also have an EC
>> which isn't supported by the generic ACPI driver. The lid, the battery
>> status and the power supply status are connected to it.
>>
>> How did you implement the EC support in the thinkpad driver? Did you
>> have documentation or was it done by reverse engineering?
>
> It was done through lots of trial and error by several people over more than
> a decade, and sometime ago SuSE managed to get me in contact with some
> Lenovo ThinkPad firmware engineers in Japan, which did help a lot.
>
> However, thinkpad-acpi is an old driver, you might want to ask the
> maintainers of newer WMI-based drivers about how they are managing...

I don't know if WMI can really help here, but will free to use wmidump
to extract all WMI informations, and

http://lwn.net/Articles/391230/
https://github.com/iksaif/wmidump
http://msdn.microsoft.com/en-us/library/windows/hardware/ff565588
http://glucik.blogspot.com/2011/12/mof-decompilation.html  (!!! the
tool is Wmimofck.exe not wmiofck.exe)

-- 
Corentin Chary
http://xf.iksaif.net
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