Re: How to read BIOS information

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On Wed, 2006-05-10 at 01:32 -0700, Dan Carpenter wrote:
> Arjan van de Ven:
> > But that's the best you can do.
> > (well you could grovel through the acpi tables just like the kernel
> > does, but you really don't want to do that from userspace)
> 
> Obviously that would be tricky in this case.  But in general it seems
> like writing an acpi table parser should be  doable.  Couldn't you
> just search through /dev/mem like dmidecode does?  What's the
> difficult part?

the difficult part is in all the exceptions, quirks and special rules
the kernel uses (like "don't trust this table if acpi is off", and the
rules for acpi to not get enabled at runtime are highly complex and
continuously evolving). 

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