title: Mouse and Keyboard not working in qemu emulator
body: <p>I am trying to run Yocto Image in qemu on my Ubuntu laptop with the following command.</p>
  
  <pre><code>qemu-system-arm -M overo -m 256 -sd ./test.img -clock unix -serial stdio -device usb-mouse -device usb-kbd
  </code></pre>
  
  <p>Qemu works fine and the image is booted pretty clean, but I am unable to use my keyboard and Mouse. On any key press I get this warning. </p>
  
  <pre><code>usb-kbd: warning: key event queue full
  </code></pre>
  
  <p>Any workaround for this unresponsive keyboard?</p>