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Nefarius.Utilities.DeviceManagement

.NET Requirements Nuget Nuget

Managed wrappers around SetupAPI, Cfgmgr32, NewDev and DrvStore Windows APIs.

Features

  • Listen for device plugin and unplug events without depending on WinForms or WPF
  • Enumerate and remove elements from the Driver Store
  • Convert various notations (Symlink to Instance ID etc.)
  • Get and set various unified device properties
  • Enumerate devices (present and absent)
  • Hot-swap device function drivers
  • Add/Remove/Clear class filters
  • Power-cycle USB hub ports
  • Install/update drivers
  • Uninstall devices

Documentation

Link to API docs.

Generating documentation

  • dotnet build -c:Release
  • dotnet tool install --global Nefarius.Tools.XMLDoc2Markdown
  • xmldoc2md .\bin\netstandard2.0\Nefarius.Utilities.DeviceManagement.dll .\docs\

Examples

Some usage examples of the core library features are presented below.

Enumerate all USB devices

The Devcon utility class offers helper methods to find devices.

var instance = 0;
// enumerate all devices that export the GUID_DEVINTERFACE_USB_DEVICE interface
while (Devcon.FindByInterfaceGuid(DeviceInterfaceIds.UsbDevice, out var path,
           out var instanceId, instance++))
{
    Console.WriteLine($"Path: {path}, InstanceId: {instanceId}");

    var usbDevice = PnPDevice
        .GetDeviceByInterfaceId(path)
        .ToUsbPnPDevice();

    Console.WriteLine($"Got USB device {usbDevice.InstanceId}");
}

Listen for new and removed USB devices

One or more instances of the DeviceNotificationListener can be used to listen for plugin and unplug events of various devices. This class has no dependency on WinForms or WPF and works in Console Applications and Windows Services alike.

var listener = new DeviceNotificationListener();

listener.DeviceArrived += Console.WriteLine;
listener.DeviceRemoved += Console.WriteLine;

// start listening for plugins or unplugs of GUID_DEVINTERFACE_USB_DEVICE interface devices
listener.StartListen(DeviceInterfaceIds.UsbDevice);

Get all driver packages in the Driver Store

var allDriverPackages = DriverStore.ExistingDrivers.ToList();

Remove all copies of mydriver.inf from the Driver Store

foreach (var driverPackage in allDriverPackages.Where(p => p.Contains("mydriver.inf", StringComparison.OrdinalIgnoreCase)))
{
    DriverStore.RemoveDriver(driverPackage);
}

Get Instance ID from a symbolic link (device path)

// e.g. the path "\\?\HID#VID_045E&PID_028E&IG_00#3&31f0e99d&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}"
// gets translated to instanceId "HID\VID_045E&PID_028E&IG_00\3&31f0e99d&0&0000"
var instanceId = PnPDevice.GetInstanceIdFromInterfaceId(path);

Get PnPDevice object from symbolic link

// example path: "\\?\HID#VID_046D&PID_C33F&MI_01&COL02#B&31580538&0&0001#{4D1E55B2-F16F-11CF-88CB-001111000030}"
PnPDevice device = PnPDevice.GetDeviceByInterfaceId(path);

Add a driver service to a device class' upper filters

string service = "HidHide";
DeviceClassFilters.AddUpper(DeviceClassIds.XnaComposite, service);

Replace a device instance's function driver with WinUSB

const string instanceId = @"USB\VID_054C&PID_0CE6&MI_03\9&DC32669&3&0003";
        
PnPDevice device = PnPDevice.GetDeviceByInstanceId(instanceId);

// required for the next call to succeed
device.InstallNullDriver();

Thread.Sleep(1000);

// accepts any INF already present in C:\Windows\INF directory
device.InstallCustomDriver("winusb.inf");

Uninstall device/revert function driver to default

const string instanceId = @"USB\VID_054C&PID_0CE6&MI_03\9&DC32669&3&0003";
        
PnPDevice device = PnPDevice.GetDeviceByInstanceId(instanceId);

// uninstall/deconfigure device
device.Uninstall();

Thread.Sleep(1000);

// trigger re-enumeration
Devcon.Refresh();

Cycle hub port a given USB device is attached to

if (Devcon.FindByInterfaceGuid(HostRadio.DeviceInterface, out PnPDevice radioDevice))
{
    UsbPnPDevice? usbHostRadio = radioDevice.ToUsbPnPDevice();

    usbHostRadio.CyclePort();
}

Sources & 3rd party credits

This library benefits from these awesome projects ❤ (appearance in no special order):