PCI_SIGNATURE

//0x4 bytes (sizeof) enum PCI_SIGNATURE { PciPdoExtensionType = 1768116272, PciFdoExtensionType = 1768116273, PciArb_Io = 1768116274, PciArb_Memory = 1768116275, PciArb_Interrupt = 1768116276, PciArb_BusNumber = 1768116277, PciTrans_Interrupt = 1768116278, PciInterface_BusHandler = 1768116279, PciInterface_IntRouteHandler = 1768116280, PciInterface_PciCb = 1768116281, PciInterface_LegacyDeviceDetection = 1768116282, PciInterface_PmeHandler = 1768116283, PciInterface_DevicePresent = 1768116284, PciInterface_NativeIde = 1768116285, PciInterface_AgpTarget = 1768116286 };