The HoloLens 2 do not support the namespace, System.IO.Ports

Questions & Answers
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1

I want to debug serial devices on HoloLens(Win on ARM64) via docking station, but when I use namespace System.IO.Ports in my Unity script（test0822） to implement serial port related functions and deploy to HoloLens, I get the following error:

System.NotSupportedException: System.IO.Ports.SerialPort::GetPortNames
  at System.IO.Ports.SerialPort.GetPortNames () [0x00000] in <00000000000000000000000000000000>:0 
  at test0822.ScanPorts () [0x00000] in <00000000000000000000000000000000>:0 
  at test0822.Start () [0x00000] in <00000000000000000000000000000000>:0 
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
test0822:ScanPorts()
test0822:Start()

my editor versions are VS2022 and Unity2022.3.3f1c1,
Api compatible level is. NET Framework, 
the script backend is IL2CPP, 
Target SDK version is 10.0.22621.0 (minimum version 10.0.18362.0).

Any help greatly appreciated!!

2

It is expected the the IL2CPP scripting backend, which is uses for Hololens, does not support the SerialPort API.

I’m curious though, is this API required for debugging on the Hololens?