Does anybody know why it is not possible to open COM port as recommended by Microsoft (ie GENERIC_READ and GENERIC_WRITE access rights)?
http://msdn.microsoft.com/en-us/library/aa450580.aspx When running in debugger this makes device freeze waiting for port opening. The thing is that it works just fine with FILE_READ_DATA and FILE_WRITE_DATA access rights that are weaker GENERICs.

http://msdn.microsoft.com/en-us/library/windows/desktop/aa364399%28v=vs… Customer doesn't want to break Microsoft's recommendations. Thank you.