Getting back Decimal address value of a USB device?

Hello All,

I have a COM server application written in C#. When I run this application I get 2 type of addresses back for one usb device as follows:

 USB0::2391::280::MY48220507::0::INSTR;
 USB0::0x0957::0x0118::MY48220507::INSTR

I was hoping to get only either one of the addresses (decimal preferably)

The code is as follows:

public class Usb
{
ResourceManager rMgr = new ResourceManager();
FormattedIO488 src = new FormattedIO488();
object resources = null;

public string OutputResources()
{
resources = rMgr.FindRsrc("USB[0-9]*::?*");
string[] resource_list = (string[])resources;
string allResources = String.Join(";", resource_list);
return allResources;

}
} 

I find the resources using "USB[0-9]*::?*" 

I tried using it as "USB[0-9]*::?*::?*::0::?*" and it gives back USB0::2391::280::MY48220507::0::INSTR;

But I am not sure if this is correct way to find resources. 

Does the USB board number and the interface number changes every time?

Is there a better way to get back USB VISA address? 

Thank you in advance!