public byte[] ControlTransferIn(byte requestType, byte request, UInt16 value, UInt16 index, UInt16 length)
{
NativeMethods.WINUSB_SETUP_PACKET setupPacket = new NativeMethods.WINUSB_SETUP_PACKET();
setupPacket.RequestType = (byte)(requestType | ControlDirectionIn);
setupPacket.Request = request;
setupPacket.Value = value;
setupPacket.Index = index;
setupPacket.Length = length;
byte[] output = new byte[length];
UInt32 actualLength = 0;
if (!NativeMethods.WinUsb_ControlTransfer(WinusbHandle, setupPacket, output, (uint)output.Length, out actualLength, IntPtr.Zero))
{
throw new Exception("ControlTransfer failed. " + (new Win32Exception()).ToString());
}
if (actualLength != output.Length)
{
byte[] copyTo = new byte[actualLength];
Array.Copy(output, copyTo, actualLength);
output = copyTo;
}
return(output);
}
public void ControlTransferOut(byte requestType, byte request, UInt16 value, UInt16 index, byte[] data)
{
NativeMethods.WINUSB_SETUP_PACKET setupPacket = new NativeMethods.WINUSB_SETUP_PACKET();
setupPacket.RequestType = (byte)(requestType | ControlDirectionOut);
setupPacket.Request = request;
setupPacket.Value = value;
setupPacket.Index = index;
if (data != null)
{
setupPacket.Length = (ushort)data.Length;
}
UInt32 actualLength = 0;
if (!NativeMethods.WinUsb_ControlTransfer(WinusbHandle, setupPacket, data, setupPacket.Length, out actualLength, IntPtr.Zero))
{
throw new Exception("ControlTransfer failed. " + (new Win32Exception()).ToString());
}
if (data != null && actualLength != data.Length)
{
throw new Exception("Not all data transferred");
}
}
public byte[] ControlTransferIn(byte requestType, byte request, UInt16 value, UInt16 index, UInt16 length)
{
NativeMethods.WINUSB_SETUP_PACKET setupPacket = new NativeMethods.WINUSB_SETUP_PACKET();
setupPacket.RequestType = (byte)(requestType | ControlDirectionIn);
setupPacket.Request = request;
setupPacket.Value = value;
setupPacket.Index = index;
setupPacket.Length = length;
byte[] output = new byte[length];
UInt32 actualLength = 0;
if(!NativeMethods.WinUsb_ControlTransfer(WinusbHandle, setupPacket, output, (uint)output.Length, out actualLength, IntPtr.Zero))
{
throw new Exception("ControlTransfer failed. " + (new Win32Exception()).ToString());
}
if(actualLength != output.Length)
{
byte[] copyTo = new byte[actualLength];
Array.Copy(output, copyTo, actualLength);
output = copyTo;
}
return output;
}
public void ControlTransferOut(byte requestType, byte request, UInt16 value, UInt16 index, byte[] data)
{
NativeMethods.WINUSB_SETUP_PACKET setupPacket = new NativeMethods.WINUSB_SETUP_PACKET();
setupPacket.RequestType = (byte)(requestType | ControlDirectionOut);
setupPacket.Request = request;
setupPacket.Value = value;
setupPacket.Index = index;
if (data != null)
{
setupPacket.Length = (ushort)data.Length;
}
UInt32 actualLength = 0;
if (!NativeMethods.WinUsb_ControlTransfer(WinusbHandle, setupPacket, data, setupPacket.Length, out actualLength, IntPtr.Zero))
{
throw new Exception("ControlTransfer failed. " + (new Win32Exception()).ToString());
}
if (data != null && actualLength != data.Length)
{
throw new Exception("Not all data transferred");
}
}