Hi tonyj,
I got the same behavior, but I found this over Sergey’s blog:
“Fast I/O
In addition to regular I/O through Sysfs Galileo supports fast I/O on digital pins 2 and 3 which can be connected using multiplexer directly to Intel Quark X1000. The fast I/O is done using /dev/uio0 device. I haven't tested this functionality yet and will report it later.” This was taken from: http://www.malinov.com/Home/sergey-s-blog/intelgalileo-programminggpiofromlinux
This means it should be similar to set up the Serial port, take a look at the procedure http://www.malinov.com/Home/sergey-s-blog/intelgalileo-configuringtheserialportinlinux. I’d suggest you to try this, let me know if it works.
Regards,
JPMontero_Intel