zephyr

History

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
prj.conf
README.rst
sample.yaml	samples/tests: bluetooth: Remove qemu_cortex_m3	2023-04-12 09:01:34 +02:00

README.rst

.. _ble_direct_adv:

Bluetooth: Direct Advertising
#############################

Overview
********

Application demonstrating the BLE Direct Advertising capability. If no device is bonded
to the peripheral, casual advertising will be performed. Once bonded, on every subsequent
boot direct advertising to the bonded central will be performed. Additionally this sample
provides two BLE characteristics. To perform write, devices need to be bonded, while read
can be done just after connection (no bonding required).

Please note that direct advertising towards iOS based devices is not allowed.
For more information about designing BLE devices for Apple products refer to
"Accessory Design Guidelines for Apple Devices".

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

* A board with BLE support
* Second BLE device acting as a central with enabled privacy. For example another Zephyr board
  or any modern smartphone

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

This sample can be found under :zephyr_file:`samples/bluetooth/direct_adv` in the
Zephyr tree.

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