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How to use GPIO on FMCOMMS2/3 boards via Linux VFS

Question asked by augie on Jul 30, 2014
Latest reply on Jul 31, 2014 by larsc

I am trying to use one of the GPIO lines on the FMCOMMS board but cannot find any documentation on how to do this via Linux file system access. I understand that GPIO0&1 are used for state machine access, but it seems 3&4 should be available and accessible via the Linux device drivers. However there doesn't seem to be any documentation on how to achieve this.


Thanks for any help!