Book Image

Yocto for Raspberry Pi

By : TEXIER Pierre-Jean, Petter Mabäcker
Book Image

Yocto for Raspberry Pi

By: TEXIER Pierre-Jean, Petter Mabäcker

Overview of this book

The Yocto Project is a Linux Foundation workgroup, which produces tools (SDK) and processes (configuration, compilation, installation) that will enable the creation of Linux distributions for embedded software, independent of the architecture of embedded software (Raspberry Pi, i.MX6, and so on). It is a powerful build system that allows you to master your personal or professional development. This book presents you with the configuration of the Yocto Framework for the Raspberry Pi, allowing you to create amazing and innovative projects using the Yocto/ OpenEmbedded eco-system. It starts with the basic introduction of Yocto's build system, and takes you through the setup and deployment steps for Yocto. It then helps you to develop an understanding of Bitbake (the task scheduler), and learn how to create a basic recipe through a GPIO application example. You can then explore the different types of Yocto recipe elements (LICENSE, FILES, SRC_URI, and so on). Next, you will learn how to customize existing recipes in Yocto/OE layers and add layers to your custom environment (qt5 for example).
Table of Contents (18 chapters)
Yocto for Raspberry Pi
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
3
Mastering Baking with Hob and Toaster

Setting up the base for the project


First, we should set up the base for our Yocto Project implementation. Most of the techniques used in this section have been covered throughout the book, so they will not be explained in detail. In this part of the chapter, we perform the basic setup for our Yocto Project implementation, which will be used for the home automation project.

Creating a new layer

We will begin by creating a new layer. The new layer will act as the base of our home automation project. For now, it will only contain our image recipe, but we will add more content to the layer throughout the chapter until we have all the parts needed for our server. Just as described in Chapter 7, Deploying a Custom Layer on the Raspberry Pi, we will use yocto-layer to help us set up the structure of the layer. We need to set a high priority to ensure that content from this layer is prioritized over, for example, content in meta-raspberrypi, like so:

$ /path/to/poky/scripts/yocto-layer create packt...