I need to get PCI slot info through ACPI using _SUN object. so i want
know how to retrieve the slot info from _SUN object. Can you tell me
how to access the _SUN object.

I have couple of questions related to that:

1) Is there any signature for that object so that we can map that and
read that structure.

2) what is the structure of _SUN object. and how to get the handle to
that structure.

3) Is there any OS dependency is there to retrieve from there.

4) Is there any BIOS issue related to that.

Thanks in advance