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	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
Kconfig	kconfig: Clean up header comments and make them consistent	2019-11-04 17:31:27 -05:00
prj.conf	samples: net: Remove net-app based sample applications	2019-02-01 12:29:21 +02:00
README.rst	doc: use :zephyr_file: where appropriate	2019-03-09 09:50:27 -05:00
sample.yaml	tests/samples: use integration_plaforms in more tests/samples	2022-11-29 16:03:23 +01:00

README.rst

.. _lldp-sample:

LLDP Sample Application
#######################

Overview
********

The Link Layer Discovery Protocol sample application for Zephyr will enable
LLDP support and setup VLANs if needed.

The source code for this sample application can be found at:
:zephyr_file:`samples/net/lldp`.

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

- :ref:`networking_with_host`

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

A good way to run this sample LLDP application is inside QEMU,
as described in :ref:`networking_with_qemu` or with embedded device like
FRDM-K64F. Note that LLDP is only supported for boards that have an ethernet
port.

Follow these steps to build the LLDP sample application:

.. zephyr-app-commands::
   :zephyr-app: samples/net/lldp
   :board: <board to use>
   :conf: prj.conf
   :goals: build
   :compact:

Setting up Linux Host
=====================

If you need VLAN support in your network, then the
:zephyr_file:`samples/net/vlan/vlan-setup-linux.sh` provides a script that can be
executed on the Linux host. It creates two VLANs on the Linux host and creates
routes to Zephyr.