USBSerialNumber usb = new USBSerialNumber();
string serial = usb.getSerialNumberFromDriveLetter("f:\");
MessageBox.Show(serial);
Class: Internal Usbserialnumber Class
using System;
using System.Collections.Generic;
using System.Text;
using System.Management;
namespace USBDriveSerialNumber {
public class USBSerialNumber {
string _serialNumber;
string _driveLetter;
public string getSerialNumberFromDriveLetter(string driveLetter) {
this._driveLetter = driveLetter.ToUpper();
if(!this._driveLetter.Contains(":")) {
this._driveLetter += ":";
}
matchDriveLetterWithSerial();
return this._serialNumber;
}
private void matchDriveLetterWithSerial() {
string[] diskArray;
string driveNumber;
string driveLetter;
ManagementObjectSearcher searcher1 = new ManagementObjectSearcher("SELECT * FROM Win32_LogicalDiskToPartition");
foreach (ManagementObject dm in searcher1.Get()) {
diskArray = null;
driveLetter = getValueInQuotes(dm["Dependent"].ToString());
diskArray = getValueInQuotes(dm["Antecedent"].ToString()).Split(',');
driveNumber = diskArray[0].Remove(0, 6).Trim();
if(driveLetter==this._driveLetter){
/* This is where we get the drive serial */
ManagementObjectSearcher disks = new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive");
foreach (ManagementObject disk in disks.Get()) {
if (disk["Name"].ToString() == ("\\\\.\\PHYSICALDRIVE" + driveNumber) & disk["InterfaceType"].ToString() == "USB") {
this._serialNumber = parseSerialFromDeviceID(disk["PNPDeviceID"].ToString());
}
}
}
}
}
private string parseSerialFromDeviceID(string deviceId) {
string[] splitDeviceId = deviceId.Split('\\');
string[] serialArray;
string serial;
int arrayLen = splitDeviceId.Length-1;
serialArray = splitDeviceId[arrayLen].Split('&');
serial = serialArray[0];
return serial;
}
private string getValueInQuotes(string inValue) {
string parsedValue = "";
int posFoundStart = 0;
int posFoundEnd = 0;
posFoundStart = inValue.IndexOf("\"");
posFoundEnd = inValue.IndexOf("\"", posFoundStart + 1);
parsedValue = inValue.Substring(posFoundStart + 1, (posFoundEnd - posFoundStart) - 1);
return parsedValue;
}
}
}
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