private static ConnectedDeviceDefinition GetDeviceDefinition(SafeFileHandle defaultInterfaceHandle, string deviceId)
{
var deviceDefinition = new ConnectedDeviceDefinition(deviceId)
{
DeviceType = DeviceType.Usb
};
var bufferLength = (uint)Marshal.SizeOf(typeof(USB_DEVICE_DESCRIPTOR));
var isSuccess2 = WinUsbApiCalls.WinUsb_GetDescriptor(defaultInterfaceHandle, WinUsbApiCalls.DEFAULT_DESCRIPTOR_TYPE, 0, WinUsbApiCalls.EnglishLanguageID, out var _UsbDeviceDescriptor, bufferLength, out var lengthTransferred);
HandleError(isSuccess2, "Couldn't get device descriptor");
if (_UsbDeviceDescriptor.iProduct > 0)
{
deviceDefinition.ProductName = WinUsbApiCalls.GetDescriptor(defaultInterfaceHandle, _UsbDeviceDescriptor.iProduct, "Couldn't get product name");
}
if (_UsbDeviceDescriptor.iSerialNumber > 0)
{
deviceDefinition.SerialNumber = WinUsbApiCalls.GetDescriptor(defaultInterfaceHandle, _UsbDeviceDescriptor.iSerialNumber, "Couldn't get serial number");
}
if (_UsbDeviceDescriptor.iManufacturer > 0)
{
deviceDefinition.Manufacturer = WinUsbApiCalls.GetDescriptor(defaultInterfaceHandle, _UsbDeviceDescriptor.iManufacturer, "Couldn't get manufacturer");
}
deviceDefinition.VendorId = _UsbDeviceDescriptor.idVendor;
deviceDefinition.ProductId = _UsbDeviceDescriptor.idProduct;
deviceDefinition.WriteBufferSize = _UsbDeviceDescriptor.bMaxPacketSize0;
deviceDefinition.ReadBufferSize = _UsbDeviceDescriptor.bMaxPacketSize0;
return(deviceDefinition);
}
private static ConnectedDeviceDefinition GetDeviceDefinition(SafeFileHandle defaultInterfaceHandle, string deviceId, ILogger logger)
{
var bufferLength = (uint)Marshal.SizeOf(typeof(USB_DEVICE_DESCRIPTOR));
#pragma warning disable IDE0059 // Unnecessary assignment of a value
var isSuccess2 = WinUsbApiCalls.WinUsb_GetDescriptor(defaultInterfaceHandle, WinUsbApiCalls.DEFAULT_DESCRIPTOR_TYPE, 0, WinUsbApiCalls.EnglishLanguageID, out var _UsbDeviceDescriptor, bufferLength, out var lengthTransferred);
#pragma warning restore IDE0059 // Unnecessary assignment of a value
_ = WindowsHelpers.HandleError(isSuccess2, "Couldn't get device descriptor", logger);
string productName = null;
string serialNumber = null;
string manufacturer = null;
if (_UsbDeviceDescriptor.iProduct > 0)
{
productName = WinUsbApiCalls.GetDescriptor(
defaultInterfaceHandle,
_UsbDeviceDescriptor.iProduct,
"Couldn't get product name",
logger);
}
if (_UsbDeviceDescriptor.iSerialNumber > 0)
{
serialNumber = WinUsbApiCalls.GetDescriptor(
defaultInterfaceHandle,
_UsbDeviceDescriptor.iSerialNumber,
"Couldn't get serial number",
logger);
}
if (_UsbDeviceDescriptor.iManufacturer > 0)
{
manufacturer = WinUsbApiCalls.GetDescriptor(
defaultInterfaceHandle,
_UsbDeviceDescriptor.iManufacturer,
"Couldn't get manufacturer",
logger);
}
return(new ConnectedDeviceDefinition(
deviceId,
DeviceType.Usb,
productName: productName,
serialNumber: serialNumber,
manufacturer: manufacturer,
vendorId: _UsbDeviceDescriptor.idVendor,
productId: _UsbDeviceDescriptor.idProduct,
writeBufferSize: _UsbDeviceDescriptor.bMaxPacketSize0,
readBufferSize: _UsbDeviceDescriptor.bMaxPacketSize0
));
}
private void Initialize()
{
Dispose();
int errorCode;
if (string.IsNullOrEmpty(DeviceId))
{
throw new WindowsException($"{nameof(Device.Net.DeviceDefinition)} must be specified before {nameof(InitializeAsync)} can be called.");
}
_DeviceHandle = APICalls.CreateFile(DeviceId, (APICalls.GenericWrite | APICalls.GenericRead), APICalls.FileShareRead | APICalls.FileShareWrite, IntPtr.Zero, APICalls.OpenExisting, APICalls.FileAttributeNormal | APICalls.FileFlagOverlapped, IntPtr.Zero);
if (_DeviceHandle.IsInvalid)
{
//TODO: is error code useful here?
errorCode = Marshal.GetLastWin32Error();
if (errorCode > 0)
{
throw new Exception($"Device handle no good. Error code: {errorCode}");
}
}
var isSuccess = WinUsbApiCalls.WinUsb_Initialize(_DeviceHandle, out var defaultInterfaceHandle);
HandleError(isSuccess, "Couldn't initialize device");
var bufferLength = (uint)Marshal.SizeOf(typeof(USB_DEVICE_DESCRIPTOR));
isSuccess = WinUsbApiCalls.WinUsb_GetDescriptor(defaultInterfaceHandle, WinUsbApiCalls.DEFAULT_DESCRIPTOR_TYPE, 0, EnglishLanguageID, out _UsbDeviceDescriptor, bufferLength, out var lengthTransferred);
HandleError(isSuccess, "Couldn't get device descriptor");
byte i = 0;
//Get the first (default) interface
var defaultInterface = GetInterface(defaultInterfaceHandle);
_UsbInterfaces.Add(defaultInterface);
while (true)
{
isSuccess = WinUsbApiCalls.WinUsb_GetAssociatedInterface(defaultInterfaceHandle, i, out var interfacePointer);
if (!isSuccess)
{
errorCode = Marshal.GetLastWin32Error();
if (errorCode == APICalls.ERROR_NO_MORE_ITEMS)
{
break;
}
throw new Exception($"Could not enumerate interfaces for device {DeviceId}. Error code: { errorCode}");
}
var associatedInterface = GetInterface(interfacePointer);
_UsbInterfaces.Add(associatedInterface);
i++;
}
IsInitialized = true;
}
