zephyr/samples/bluetooth/eddystone
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
..
boards
src samples, tests, boards: Switch main return type from void to int 2023-04-14 07:49:41 +09:00
CMakeLists.txt
prj.conf
README.rst
sample.yaml

.. _bluetooth-eddystone-sample:

Bluetooth: Eddystone
####################

Overview
********
Application demonstrating `Eddystone Configuration Service`_

The Eddystone Configuration Service runs as a GATT service on the beacon while
it is connectable and allows configuration of the advertised data, the
broadcast power levels, and the advertising intervals. It also forms part of
the definition of how Eddystone-EID beacons are configured and registered with
a trusted resolver.


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

* BlueZ running on the host, or
* A board with BLE support

Building and Running
********************
This sample can be found under :zephyr_file:`samples/bluetooth/eddystone` in the
Zephyr tree.

See :ref:`bluetooth samples section <bluetooth-samples>` for details.

.. _Eddystone Configuration Service: https://github.com/google/eddystone/tree/master/configuration-service