zephyr

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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
ds2484.overlay
prj.conf
README.rst
sample.yaml
w1_serial.overlay

README.rst

.. _w1_scanner_sample:

1-Wire Scanner Sample
#####################

Overview
********

This sample demonstrates how to scan for 1-Wire devices. It runs the 1-Wire
scan routine once and prints the family id as well as serial number of the
devices found.

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

Set DTC_OVERLAY_FILE to "ds2484.overlay" or "w1_serial.overlay" in order to
enable and configure the drivers.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/w1/scanner
   :board: nrf52840dk_nrf52840
   :gen-args: -DDTC_OVERLAY_FILE=w1_serial.overlay
   :goals: build flash
   :compact:

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

.. code-block:: console

    [00:00:00.392,272] <inf> main: Device found; family: 0x3a, serial: 0x3af9985800000036
    [00:00:00.524,169] <inf> main: Device found; family: 0x3a, serial: 0x3a6ea2580000003b
    [00:00:00.656,097] <inf> main: Device found; family: 0x28, serial: 0x2856fb470d000022
    [00:00:00.656,097] <inf> main: Number of devices found on bus: 3