zephyr

History

Gerard Marull-Paretas a202341958 devices: constify device pointers initialized at compile time Many device pointers are initialized at compile and never changed. This means that the device pointer can be constified (immutable). Automated using: ``` perl -i -pe 's/const struct device \(?!const)(.)= DEVICE/const struct device const $1= DEVICE/g' /.c ``` Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>		2022-08-22 17:08:26 +02:00
..
src	devices: constify device pointers initialized at compile time	2022-08-22 17:08:26 +02:00
CMakeLists.txt	cmake: use find_package() instead of literal include in tests and samples	2021-11-01 10:33:09 -04:00
prj.conf
README.rst
sample.yaml

README.rst

.. _kscan-touch-sample:

KSCAN touch panel example
####################################

Overview
********

This sample demonstrates how to interface with a touch panel. When touches are
detected a log message is output on the console.

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

The sample can be built and executed on boards with a touch panel for example
stm32f746g_disco or mimxrt1060_evk. The boards dts file should contain an alias
to kscan0

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

.. code-block:: console

   KSCAN test for touch panels.
   Note: You are expected to see several callbacks
   as you touch the screen.