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Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>		2020-09-02 13:48:13 +02:00
..
src	device: Const-ify all device driver instance pointers	2020-09-02 13:48:13 +02:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _lps22hb:

LPS22HB: Temperature and Humidity Monitor
#########################################

Overview
********
This sample periodically reads pressure from the LPS22HB MEMS pressure
sensor and displays it on the console.


Requirements
************

This sample uses the LPS22HB sensor controlled using the I2C interface.

References
**********

- LPS22HB: http://www.st.com/en/mems-and-sensors/lps22hb.html

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

This project outputs sensor data to the console. It requires an LPS22HB
sensor, which is present on the disco_l475_iot1 board.

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/lps22hb
   :board: disco_l475_iot1
   :goals: build
   :compact:

Sample Output
=============

.. code-block:: console

   Observation:1
   Pressure:98.7 kPa
   Temperature:22.5 C
   Observation:2
   Pressure:98.7 kPa
   Temperature:22.5 C
   Observation:3
   Pressure:98.7 kPa
   Temperature:22.5 C

   <repeats endlessly every 2 seconds>