title: Choosing between /dev/tty.usbserial vs /dev/cu.usbserial
body: <p>A PL2303 serial-over-USB device is configured to receive-only data.  There is an explanation of <em>tty</em> vs. <em>cu</em> here:</p>
  <p><em><a href="https://stackoverflow.com/questions/8632586/macos-whats-the-difference-between-dev-tty-and-dev-cu">MacOS: what&#39;s the difference between /dev/tty.* and /dev/cu.*?</a></em></p>
  <p>That being said, when configuring data collection software, one has to choose either <em>/dev/tty.usbserial</em> <em><strong>or</strong></em> <em>/dev/cu.usbserial</em>.  I would like to understand the facts and the decision-making thought for selecting <em>tty</em> or <em>cu</em>.</p>