* 01-Oct-2004 BJD Fixed mask bug in pullup() call
* 01-Oct-2004 BJD Added getirq() to turn pin into irqno
* 04-Oct-2004 BJD Added irq filter controls for GPIO
* 01-Oct-2004 BJD Fixed mask bug in pullup() call
* 01-Oct-2004 BJD Added getirq() to turn pin into irqno
* 04-Oct-2004 BJD Added irq filter controls for GPIO