title: Low-level serial interface for Linux OS (Manual RTS/CTS control etc.)?
body: <p>I'm looking for a library that can create a very low-level <code>RS232</code> connection - I'm working with a device that uses the <code>RTS/DTR</code> pins as relay controls.</p>
  
  <p>The library has to be compatible with <strong>Ubuntu 12.04</strong> (Multi-platform preferred) and <strong>C/C++</strong> support would be preferred.</p>