//0x10 bytes (sizeof)
struct _PCIE_DEVICE_ID
{
USHORT VendorID; //0x0
USHORT DeviceID; //0x2
ULONG ClassCode:24; //0x4
ULONG FunctionNumber:8; //0x4
ULONG DeviceNumber:8; //0x8
ULONG Segment:16; //0x8
ULONG PrimaryBusNumber:8; //0x8
ULONG SecondaryBusNumber:8; //0xc
ULONG Reserved1:2; //0xc
ULONG SlotNumber:14; //0xc
ULONG Reserved2:8; //0xc
};