zephyr/samples/drivers/kscan
Francisco Munoz dda683a1b3 samples: drivers: kscan: Add kscan sample application
This illustrates how a keyboard matrix (laptop keyboard) reports
key events to a user application. In addition, it shows how to
handle the typematic rate and delay from user space.

Signed-off-by: Francisco Munoz <francisco.munoz.ruiz@intel.com>
2019-10-16 13:29:21 -07:00
..
src
CMakeLists.txt
README.rst
prj.conf
prj_mec15xxevb_assy6853.conf
sample.yaml

README.rst

.. kscan-sample:

KSCAN Interface
####################################

Overview
********

This sample demonstrates how to use the :ref:`KSCAN API <kscan>`.
Callbacks are registered that will write to the console indicating KSCAN events.
These events indicate key presses and releases.

Building and Running
********************

The sample can be built and executed on boards supporting a Keyboard Matrix.
Please connect a Keyboard Matrix to exercise the functionality. You need to
obtain the right keymap from the vendor because they vary across different
manufactures.

Sample output
=============

.. code-block:: console

   KSCAN test with a Keyboard matrix
   Note: You are expected to see several callbacks
   as you press and release keys!