I know it may be late for this post but...
There are two more libraries which can be used to access the GPIO on your 96Boards, they can be found here:
Each github with some appropriate documentation.
Please keep an eye on the 96Boards website, github, and wiki for more information around these libraries, including build instructions and examples. These, along with the 96BoardsGPIO library mentioned above are expected to be included in future 96Boards builds.
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