SerialPort.GetPortNames() throws a PlatformNotSupportedException in UWP ARM platforms

[gmgallo]

System.PlatformNotSupportedException: 'Enumeration of serial port names is not supported on the current platform.' .NET Core also has a Windows.Devices.SerialCommunication.SerialDevice() class, which lacks a port enumeration function. A clarification is needed to know if SerialDevice() is deprecated in favor of SerialPort() but kept for backward compatibility with older code.

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Document Details

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• ID: fa765d00-19f8-74e4-4be1-1d7f1e7dc6ce
• Version Independent ID: 260749e3-69c6-a370-89b0-4f90d944fac7
• Content: SerialPort Class (System.IO.Ports)
• Content Source: xml/System.IO.Ports/SerialPort.xml
• Product: dotnet-api
• GitHub Login: @mairaw
• Microsoft Alias: mairaw

[misaya]

did this issue solved?

[misaya]

The SerialDevice class was suggested in UWP.

[jozkee]

cc @krwq @wfurt

[trantamcdt92]

I also encountered this issue on MacOS (12.0), is there a way to fix this issue?

[gmgallo]

I ended up writing my own serial port enumeration lib using Win32 system calls. Unfortunately I know nothing about MacOS. You will have to write your own. Sorry. Be aware that the NET SerialPort module also has problems. Under heavy data streams it randomly misplaces a bunch of bytes out of order specially at the start of the stream. I also ended up writing my own C++ lib with native system calls to avoid it. There is ample discussion about this problem in StackOverflow.