Dell DSDT corrected

[Jan Slezak <jan.slezak-aRb0bU7PRFPrBKCeMvbIDA@public.gmane.org>]

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Hi there!

I modified my Dell Latitude C640 DSDT table and values in /proc/acpi what were 
previously constantly zero (or something equivalent) where brought to life. 
This is:

- temperature in thermal zone
- processor frequency in performance in processor (processor consumption is 
still zero, but I belive it is not exposed to ACPI)
- all information in battery (except presence/absence what was already working 
before)

The DSDT patch and original DSDT are enclosed I hope it helps someone.

Patch avoids passing buffers as arguments to functions that modifies it. I 
discovered that such buffers are passed by value and modifications don't 
apply to where it should.

P.S. to Marco: I didn't find any item in my DSDT concerning fans so I think it 
is realy not exposed to ACPI and no items are shown under /proc/acpi/fan 
(WinXP also doesn't show fans in hardware list and I think it doesn't drive 
them, they are likely driven directly by BIOS). But I am able to drive fans 
by i8k module made by Massimo Dal Zotto.


Jan

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