title: Simple USB host stack
body: <p>I am trying to connect to a single USB device using the USB host port on an Atmel processor.  I have an embedded system with limited memory and no OS.  I want to implement a simple dedicated host to interface to a single USB slave device.</p>
  
  <p>Can anyone guide me to a simple USB host implementation?</p>
  
  <p>The processor is the Atmel AT91SAM9261S.</p>