===== DIR =====

Setup GPIO pin direction.\\
Called without parameters, this command return the current status of IO pin direction setting.

==== Synopsis ====

<code>GPIO GPIO DIR [<IN/OUT>]
</code>
 
==== Return ====

Without parameter:

<code>ON
OK
</code> 

Or:

<code>OUT
OK
</code> 

Or with parameter:

<code>OK</code>