enable the pci express RC

Hi all,

This is regarding validating the RC(root complex) device of pci express. The aim is to enable the RC to do enumeration and configuration of the sub-ordinate ports (including Switch and EP) attached to it. For testing purpose, the RC(under test) is connected as a device to a standard pci-express slot of a pci-express complaint motherboard running windows-xp on it.

When windows is up the pnp manager detects the RC(under test) and asks for drivers.

So my question is whether i should write a function driver for the RC board? Or any default driver from windows should be able to work on it?

Thanks in advance
Swati