zephyr

History

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	samples: drivers: entropy: Change readme to rst format	2020-05-15 17:18:56 +02:00
prj.conf	…
sample.yaml	samples: drivers/entropy yaml regex fix	2020-04-03 08:00:38 -04:00

README.rst

.. _entropy_sample:

Entropy
#######

Overview
********
Sample for the entropy gathering driver

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

This project writes an infinite series of random numbers to the
console, 9 per second.

It can be built and executed on frdm_k64f as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/entropy
   :host-os: unix
   :board: frdm_k64f
   :goals: run
   :compact:

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

.. code-block:: console

   Entropy Example! arm
   entropy device is 0x2000008c, name is ENTROPY_0
     0xd7  0x42  0xb0  0x7b  0x56  0x3b  0xc3  0x43  0x8a  0xa3
     0xfa  0xec  0xd8  0xc3  0x36  0xf8  0x7b  0x82  0x2b  0x39