## page was renamed from IIO cleanup

''This page is work in progress, I will remove this message when done. Then you can start working on tasks''

These tasks are for you to get familiar with the IIO subsystem. 

= Experimenting with IIO subsystem =

For this we will use two kernel modules found in {{{drivers/staging/iio}}}:

 * {{{iio_dummy_evgen.ko}}} - generates ''fake'' events interrupts to be used by the {{{iio_dummy}}} example driver
   * implementation for this module is in {{{iio_dummy_evgen.c}}}
 * {{{iio_dummy.ko}}} - example IIO driver to demonstrate existing functionality
   * core implementation can be found in {{{iio_simple_dummy.c}}}
   * buffer functionality is implemented in {{{iio_simple_dummy_buffer.c}}}
   * events functionality is implemented in {{{iio_simple_dummy_events.c}}}

== Dummy modules compilation ==

You need to select the following config options:
 * {{{CONFIG_IIO_DUMMY_EVGEN}}} - for building {{{iio_dummy_evgen}}} kernel module
 * {{{CONFIG_IIO_SIMPLE_DUMMY}}} - for building {{{iio_dummy}}} kernel module
   * {{{CONFIG_IIO_SIMPLE_DUMMY_EVENTS}}}, {{{CONFIG_IIO_SIMPLE_DUMMY_BUFFER}}} should be selected for events and buffer functionality.

Use the following commands for modules compilation:
 * {{{$ make drivers/staging/iio/iio_dummy_evgen.ko}}}
 * {{{$ make drivers/staging/iio/iio_dummy.ko}}}

Use the following commands for module loading:
 * {{{$ insmod iio_dummy_evgen.ko}}}
 * {{{$ insmod iio_dummy.ko}}}

Task 01:

 * Show that the modules were successfully loaded.
   * lsmod
   * ls -l /sys/bus/iio/devices/
   * ls -l /sys/bus/iio/devices/iio:device0/
   * ls -l /sys/bus/iio/devices/iio_evgen/

== IIO event monitor ==

IIO event monitor is an user space example application which reads events from IIO layer and pretty prints the results. Implementation can be found in {{{iio_event_monitor.c}}} under {{{tools/iio/}}}. [[BR]]

Task 02:

    * compile {{{iio_event_monitor.c}}} to obtain an executable called {{{iio_event_monitor}}}.