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libpifacedigital

A simple library for controlling PiFace Digital. Hides the SPI file descriptors so the user only has to deal with hw_addr.

Building

To build the library, first install the required dependency libmcp23s17. Then run:

$ make

Install the library to /usr/local using:

$ make install

To test the library, compile and execute the example program:

$ make example
$ ./example

A command line utility named pifacedigital is also available. Build with:

$ make pifacedigital
$ ./pifacedigital read input
$ ./pifacedigital --help

Usage

See example.c for example usage.

Compile your software with the following flags:

-lpifacedigital -lmcp23s17

You can specify the path of the libraries manually, using:

-I/path/to/headers -L/path/to/libpifacedigital -lpifacedigital -L/path/to/mcp23s17 -lmcp23s17

Documentation

An online version of the documentation is available at http://piface.github.io/libpifacedigital.

Build it with (assuming that you are in the directory of the cloned repository):

$ cd docs/
$ doxygen pifacedigital-doc.conf

To view as HTML, point your browser to docs/html/index.html.

To view as PDF:

$ cd latex/
$ make

The pdf is called refman.pdf.