dup_device
  
  Description:
  [ 
Version ( since = 
"1.0" ) ]
public string dup_device ()
  
    Gets a copy of the physical modem device reference (ie, USB, PCI, PCMCIA device), which may be dependent upon the operating system.
    Parameters:
    
    Returns:
    
      
        | The device, or nullif none available. The returned value should be freed with 
            g_free. |