title: Is it necessary to synchronize .NET SerialPort writes/reads?
body: <p>In my application I use the .NET SerialPort class for reading and writing data. The reading is done using the DataReceived event, I assume internally on a ThreadPool thread. The writing is done by the UI thread (WinForms).</p>
  
  <p>I was wondering, if it's necessary to synchronize the access to the SerialPort instance, so that no Reads/Writes can happen at the same time. My conscience tells me I should put locks around these calls, but I'm puzzled as all C# SerialPort examples I find on the Internet don't use locking at all. </p>