I have a program to read/write serial COM devices. It works correctly with any COM ports and with USB-COM devices, but in this board using UartSub Device drivers, we have detected some problems in the next Win32 API methods that I use from Windows API (https://docs.microsoft.com/en-us/previous-versions/ms810467(v=msdn.10)):
Any ideas or additional tests to do ? I found for new drivers but it seems this is the lastest.
Thank you in advance for your help
PS: I attached a picture with COM devices that apparently are installed correctly in Device Manager and we can open/close port correctly.
Don't worry about apologizing; you didn't know. I wasn't trying to be abrupt either; you just aren't going to get the mindset you need from the folks in this forum (Intel or otherwise). I wish I could have moved your post over to that forum for you, but I am not sure that these forums are connected such that transfers can occur (and I don't have the privileges necessary regardless).