docs: add debugging doc

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

README.md

@@ -50,6 +50,14 @@ Examples
 
 See the [examples](../../tree/master/examples) available for various languages
 
+Debugging
+=========
+
+Sometimes it just doesn't want to work, let us try and help you, you can file
+issues in github or join us in #mraa on freenode IRC, hang around for a little
+while because we're not necessarily on 24/7, but we'll get back to you! Have a
+glance at our [debugging](../master/docs/debugging.md) page too.
+
 C/C++ API Documentation
 ===========
 

docs/debugging.md

@@ -0,0 +1,30 @@
+Debugging libmraa                         {#debugging}
+=================
+
+This page contains a few debugging tip, when filing an issue please go through
+this list as if you don't it's the first thing we'll have to ask you to do.
+
+### Version
+
+Getting the exact version of libmraa you're running is really important to us.
+The best way to get this is to call mraa_get_version() or mraa.getVersion(). If
+mraa returns x.x.x-dirty then your version was not built from a git tree or you
+built out of tree (see our building doc) - or you don't have git installed.
+
+### Syslog
+
+mraa logs pretty much everything that goes wrong to syslog, these days it'll go
+to the systemd journal usually so check with `sudo journalctl -f` whilst
+running your app or check all libmraa messages with `journalctl -t libmraa`.
+Grab all the messages from the initialisation message right up to your last
+one, using a pastebin is always a good idea, I like dpaste.com. If your system
+does not have systemd likely your log is in /var/log/messages or similar.
+
+### Common Errors
+
+* Not running as root
+* Incorrect IO numbers, mraa uses physical connector pin numbering see your
+  platform doc for details
+* Unsuported platform
+* Using the wrong pin, check pin capabilities
+

docs/index.md

@@ -44,15 +44,12 @@ Specific platform information for supported platforms is documented here:
 - @ref minnowmax
 - @ref rasppib
 
-### ENV RECOMENDATIONS
+## DEBUGGING
 
-All of these are 'optional', however they are recommended. Only a C compiler,
+Sometimes it just doesn't want to work, let us try and help you, you can file
-cmake, libm and pthreads are technically required to compile.
+issues in github or join us in #mraa on freenode IRC, hang around for a little
-
+while because we're not necessarily on 24/7, but we'll get back to you! Have a
-- Swig 3.0.1+ built with node.js (0.10.x) & python support
+glance at our @debugging page too
-- doxygen
-- sphinx (requires doxygen)
-- pygments
 
 ## COMPILING