c#.NET USB device persistent identifier

问题

I am looking for a way in C# to have a persistent (across when end-users unplug a hub/restart their computer) identifier for USB slots, more specifically, SD card readers. Drive letters are not always assigned to the same slot, but I need a way to identify Slot A physically; as once I can identify it, I can make the connections to a drive letter.

So my question(s):

1. Is this possible?
2. If so, how would I go about getting these identifiers?

回答1:

WMI class Win32_USBHub.

ManagementObjectSearcher sidQuery = new ManagementObjectSearcher("Select * From Win32_USBHub");
ManagementObjectCollection results = sidQuery.Get();
List<String> deviceID = new List<String>();
foreach (ManagementObject result in results)
{
   deviceID.Add(result["DeviceID"]);
}

See more here : Get List of connected USB Devices

Documentation about Win32_USBHub : http://msdn.microsoft.com/en-us/library/windows/desktop/aa394506(v=vs.85).aspx

来源：https://stackoverflow.com/questions/17997284/c-net-usb-device-persistent-identifier