Pretty much any post of mine showing some knowledge of Galileo, it just means I am quoting from Sergey's blog.
See this entry:
Intel Galileo - Building Linux Image - Malinov Family Web Presence
In my case, I am running BSP 0.8.0, using distro clanton-full. That is egclib based - and not compatible with the IDE.
In Sergey's blog, you will also find gpio mapping and some examples.
Read the whole thing - you will be better for it. I used it to build a serial cable, add wifi, and much more...