zephyr/samples/sensor/sensor_shell
Keith Packard 0b90fd5adf samples, tests, boards: Switch main return type from void to int
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.

Most of these changes were automated using coccinelle with the following
script:

@@
@@
- void
+ int
main(...) {
	...
-	return;
+	return 0;
	...
}

Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-14 07:49:41 +09:00
..
src samples, tests, boards: Switch main return type from void to int 2023-04-14 07:49:41 +09:00
CMakeLists.txt
Kconfig sample: add trigger support to sensor shell sample 2023-03-06 10:44:52 -06:00
prj.conf sample: add trigger support to sensor shell sample 2023-03-06 10:44:52 -06:00
README.rst drivers: sensor: Remove brackets from sensor info shell command output 2022-11-02 15:40:24 +09:00
sample.yaml

.. _sensor_shell_sample:

Sensor Shell Module Sample
##########################

Overview
********
This is a simple shell module to get data from sensors presented in the system.

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

Build the sample app by choosing the target board that has sensors drivers
enabled, for example:

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/sensor_shell
   :board: reel_board
   :goals: build flash

Shell Module Command Help
=========================

.. code-block:: console

   sensor - Sensor commands
   Subcommands:
     get   :Get sensor data. Channel names are optional. All channels are read when
            no channels are provided. Syntax:
            <device_name> <channel name 0> .. <channel name N>
     info  :Get sensor info, such as vendor and model name, for all sensors.


**get**: prints all the sensor channels data for a given sensor device name.
Optionally, a single channel name or index can be passed to be printed out. The
device name and channel name are autocompleted.

Output example (reel_board):

.. code-block:: console

   uart:~$ sensor get mma8652fc@1d
   channel idx=0 accel_x =   0.000000
   channel idx=1 accel_y =   0.268150
   channel idx=2 accel_z =   9.959878
   channel idx=3 accel_xyz x =   0.000000 y =   0.268150 z =   9.959878

   uart:~$ sensor get mma8652fc@1d accel_z
   channel idx=2 accel_z =   9.959878

   uart:~$ sensor get mma8652fc@1d 2
   channel idx=2 accel_z =   9.959878

.. note::
   A valid sensor device name should be passed otherwise you will get an
   undefined behavior like hardware exception. This happens because the shell
   subsystem runs in supervisor mode where API callbacks are not checked before
   being called.

**info**: prints vendor, model, and friendly name information for all sensors.
This command depends on enabling :kconfig:option:`CONFIG_SENSOR_INFO`.

.. code-block:: console

   uart:~$ sensor info
   device name: apds9960@39, vendor: Avago Technologies, model: apds9960, friendly name: (null)
   device name: mma8652fc@1d, vendor: NXP Semiconductors, model: fxos8700, friendly name: (null)
   device name: ti_hdc@43, vendor: Texas Instruments, model: hdc, friendly name: (null)
   device name: temp@4000c000, vendor: Nordic Semiconductor, model: nrf-temp, friendly name: (null)