Use WMI to Associate win32_SerialPort device with win32_LogicalDrive mapping

Question

Hi,
My c# application requires to flash a micro-controller, which has been configured as a removable device and is connectable by means of a Virtual Com Port.
So, I need to recognise the volume label of the mapped drive and perform the flash using a simple file copy.
The problem is that some of the micro-controllers produce slightly different volume labels making it difficult to identify all possible cases via string comparison.
I know how to retrieve drive info for removable devices using DriveInfo.GetDrives(). This gives me the drive letter and the volume label
removableDriveList = (List<RemovableDrive>)DriveInfo.GetDrives()
        .Where(d => d.DriveType == DriveType.Removable)
        .Select(s => new RemovableDrive
                Drive = s.Name,
                Label = s.VolumeLabel
            }).ToList();
 I know how to detect the com port and recognisable description of the development boards using WMI to query Win32_SerialPorts.
ManagementObjectCollection collection;
using (var searcher = new ManagementObjectSearcher(@"Select * From Win32_SerialPort"))
        collection = searcher.Get();
var removableDevices = from ManagementObject x in collection
    where x.Properties["Name"].Value.ToString().Contains("MyManufacturer")
    select x;
    portName = (String)(removableDevices.First().GetPropertyValue("DeviceID"));
However, I can't associate the virtual com port with the drive mapping. I want to be able to say, this device with ID COM7, manufacturer "MyManufacturer", matches drive mapping "I:\My_Microcontroller".
I noticed (from device manager properties) that they both have the same container ID and are derived from the same usb controller, however I don't know how to access the this information from each child using WMI. Is this possible?
Thanks

Answer 1

Hello Marcpolo,
I move it to the desktop forum since it is more related with Windows Management Instrumentation development.
Regards.
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