public static void GetDfuDevices(List <USBDeviceList> devicelist, IReadOnlyList <HardwareIds> FilterDevices)
{
string DeviceSearchQuery = "SELECT * FROM Win32_USBControllerDevice";
ManagementObjectSearcher USBControllerDeviceCollection = new ManagementObjectSearcher(DeviceSearchQuery);
if (USBControllerDeviceCollection == null)
{
return;
}
foreach (ManagementObject queryObj in USBControllerDeviceCollection.Get())
{
// Get the DeviceID of the device entity
string Dependent = (queryObj["Dependent"] as string).Split(new Char[] { '=' })[1];
foreach (HardwareIds FilterDevice in FilterDevices)
{
// Filter out USB devices without VID and PID
Match match = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}");
if (!match.Success)
{
continue;
}
UInt16 VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // Vendor ID
if (FilterDevice.Vid == UInt16.MinValue || FilterDevice.Vid != VendorID)
{
continue;
}
UInt16 ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // Product Number
if (FilterDevice.Pid == UInt16.MinValue || FilterDevice.Pid != ProductID)
{
continue;
}
// Check to see if our interface number is available for uploads
Match matchInterface = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}&MI_[0-9|A-F]");
if (matchInterface.Success)
{
continue; // Skip interface nodes, since we are only interested in the main composite device.
}
UInt64 SerialNum = 0;
// The match fails if the interface is not available, meaning that this is the "parent" node.
// When this is the case, the serial number will be available at the end of the string.
try {
SerialNum = Convert.ToUInt64(Dependent.Substring(25, 12), 16);
}
catch (Exception) {
// Could not retrieve the serial number, perhaps this device does not advertise one.
}
string PnPEntrySearchQuery = "SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent;
ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(PnPEntrySearchQuery).Get();
if (PnPEntityCollection == null)
{
continue;
}
foreach (ManagementObject Entity in PnPEntityCollection)
{
USBDeviceList Element = new USBDeviceList(
"" as string, // Device ID not available right now
Entity["PNPDeviceID"] as string, // PnP Device ID
Entity["Description"] as string // Device Description
);
Guid ClassGuid = new Guid(Entity["ClassGuid"] as String); // Device installation class GUID
if (GUID_USB_CLASS_USB_DEVICE != Guid.Empty && ClassGuid == GUID_USB_CLASS_USB_DEVICE)
{
Element.MachineName = USBDeviceList.MachineType.StBootloader; // Uses a generic USB device ClassGUID
}
else if (GUID_USB_CLASS_BUS_DEVICES != Guid.Empty && ClassGuid == GUID_USB_CLASS_BUS_DEVICES)
{
Element.MachineName = USBDeviceList.MachineType.StDevice; // Makes use of WinUsb driver ClassGuid
}
else
{
continue;
}
Element.VendorId = VendorID; // Vendor ID
Element.ProductId = ProductID; // Product Number
// Get a user-friendly name from the filter device.
Element.Name = GetString(FilterDevice);
Element.ClassGuid = ClassGuid.ToString(); // Device installation class GUID
Element.SerialNumber = SerialNum;
devicelist.Add(Element);
}
} // foreach (HardwareIds FilterDevice in FilterDevices)
} // foreach( ManagementObject queryObj in USBControllerDeviceCollection )
}
/* Update connected COM ports
* - Retrieve all used USB ports and filter 3devo specific devices
*
* Code derived from: https://stackoverflow.com/questions/3331043/get-list-of-connected-usb-devices
*/
private void UpdateDeviceList()
{
DisableInterface();
DeviceInfoList.Clear();
Util.InvokeIfRequired(this, c => { this.cmbPort.Items.Clear(); });
// Get all the serial devices which do not make use of DFU programming
USBDeviceList.GetSerialDevices(DeviceInfoList, DevoHardware.SerialDevices);
// Get all the other devices in the list (such as Airid Dryer)
USBDeviceList.GetDfuDevices(DeviceInfoList, DevoHardware.DfuDevices);
// Add all components to the combobox list
bool valid_device = false;
UInt16 DeviceCount = 0;
string NewHardwareField = "";
foreach (USBDeviceList Device in DeviceInfoList)
{
valid_device = true;
NewHardwareField = "";
switch (Device.MachineName)
{
case USBDeviceList.MachineType.AtmelDevice:
NewHardwareField = (DeviceCount + 1).ToString() + ". " + Device.Name; // Hardware friendly name
break;
case USBDeviceList.MachineType.StBootloader:
NewHardwareField = (DeviceCount + 1).ToString() + ". " + "Generic ST device" + $" ({Device.SerialNumber:X})";
break;
case USBDeviceList.MachineType.StDevice:
NewHardwareField = (DeviceCount + 1).ToString() + ". " + Device.Name + $" ({Device.SerialNumber:X})";
break;
case USBDeviceList.MachineType.None:
NewHardwareField = (DeviceCount + 1).ToString() + ". " + "Unsupported device";
break;
default:
valid_device = false;
Util.InvokeIfRequired(this, c => {
txtStatusInfo.AppendText($"An unexpected machine found in device list ({Device.MachineName})");
});
break;
}
if (valid_device)
{
Util.InvokeIfRequired(this, c => { this.cmbPort.Items.Add(NewHardwareField); });
DeviceCount += 1;
}
}
// Pre-select the first item in the list if only one device is selectable. Changing the selected index
// when no device is preselected raises the comboboxDropdown_Handler a second time.
Util.InvokeIfRequired(this, c => {
if (this.cmbPort.Items.Count > 0 && this.cmbPort.SelectedIndex == -1)
{
this.cmbPort.SelectedIndex = 0;
}
else
{
// Refresh the selected combobox index manually.
// Note that this assumes that the interface will also be refreshed in this handler.
ComboboxDropdown_Handler();
}
});
}