ACPI DSDT language

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

Hi,

I would like to know what way should be buffers handled when are passed as arguments to 
ACPI methods. I don't have a time to read the ACPI specs so I hope someone knows. 

I find out by tracing my /_TZ/TMP method that they are passed by value so following 
construction (part of my original DSDT slightly modified) doesn't work (PNPG called) 
because PGET is not modified:

    Method (SX33, 2, NotSerialized)
    {
        If (LLess (Arg1, SizeOf (Arg0)))
        {
            CreateByteField (Arg0, Arg1, SX20)
            Store (Something, SX20)
        }
    }

    Method (PNPG, 1, NotSerialized)
    {
	.
	.
        Name (PGET, Buffer (8) {})
        SX33 (PGET, 2)
        Return (PGET)
    }

I need to know it to decide wheter it is my BIOS or the linux ACPI implementation what is 
buggy and to decide whether to send my DSDT patch to my notebook manufacturer (DELL).


Thanks,
  Jan

P.S.: If it is right behaviour and the BIOS is buggy I don't understand why the ACPI 
(actually ACPI battery info) is working under WinXP, where there is no DSDT override and 
no buggy feature workaround in the biosinfo.inf for my DELL.


-------------------------------------------------------
This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com