HID gamepad by vJoySerialFeeder

Background

Wanted: D1 UNO as HID game controller.
Unlike FTDI USB chips, CH340G on D1 UNO can only be serial.

• Traditional workaround was vJoy - no longer supported

  alternatives

• VJoySerialFeeder is a recent alternative.
  • Docs lacks installation instructions in Quickstart
• “Feeder” because it depends on a virtual HID bus for visibility by games.
• VJoySerialFeeder uses vJoy or vXbox; neither are UWD
  • ViGEm is UWD
  • mi-360 uses ViGEm.NET
    • C# interface code for ViGEm may work for VJoySerialFeeder…
    • Ultimately, I may use mi-360 to derive a simpler dedicated serial<>ViGEm filter
  • meanwhile, concerns about C# and .NET foibles and incompatilities among
    • Visual Studio 2017 Community (thankfully the latest version) for mi-360.
    • SharpDevelop 4.4 (for VJoySerialFeeder) and
      • SharpDevelop seems nearly dead; current version is 5.1

C# code

Among other things, MainForm.cs selects serial port and protocol
and, along with MainFormWorker.cs, defines class MainForm

• MainFormWorker.cs: backgroundWorker in MainForm is main program loop

IBus C# code

• SerialProtocols/IbusReader.cs ReadChannels(), IbusSetupForm.cs
• vJoySerialFeederLinux.csproj, vJoySerialFeeder.csproj
• MainForm.cs

IBus references

• IBus half-duplex control and telemetry
• iBus Arduino library
• FlySky FS-i6 IBus
• IBus C library

serial C# code

• SerialProtocols/SerialReader.cs class SerialReader and
  class SerialBuffer (which uses SerialPort)
  SerialBuffer.Init creates Buffer
• MainForm.cs SerialPort.GetPortNames()

• PortSetupForm.cs

• linux vs Windows via VJoyCollectionBase.cs

virtual bus C# code

• Windows: VirtualJoysticks/VJoyCollectionWindows.cs
  selects among available vJoy vs vXbox vs None (wants extension to ViGEm)
  • mi-360 close to vXBox..
    VJoyVXBox.cs appears to have reverse-engineered vXboxInterface.dll entry points
  • From mi-360, hack MiGamepad.cs here as VJoyViGEm.cs

Web browser for monitoring / debugging

• WebSocket Interaction