3. Creating the helloworld Recipe | Using Yocto Project with BeagleBone Black

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Using Yocto Project with BeagleBone Black

3.2 (6)

Using Yocto Project with BeagleBone Black

3.2 (6)

Overview of this book

This book is ideal for system developers with knowledge and experience of embedded systems. Knowledge of BeagleBone Black is assumed, while no knowledge of Yocto Project build system is necessary.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Free Chapter

1. Welcome to Yocto Project and BeagleBone Black

1. Welcome to Yocto Project and BeagleBone Black

Setting up a host environment

Obtaining Yocto Project

Let's build for BeagleBone

Creating partitions and formatting the SD card

Copying images to the card

Hardware setup

Serial setup

Booting BeagleBone

More about configuration files

Summary

2. What's BitBake All About?

2. What's BitBake All About?

A brief history of BitBake

Legacy tools and BitBake

BitBake execution

BitBake options

Summary

3. Creating the helloworld Recipe

3. Creating the helloworld Recipe

Creating helloworld

Contents of the helloworld recipe

Building a recipe

Build directories

Tasks

Deploying helloworld

Summary

4. Adding Multimedia to Your Board

4. Adding Multimedia to Your Board

Introducing gaku

The recipe for gaku

GStreamer recipes' short trip

Action time

Summary

5. Creating and Exploring Layers

5. Creating and Exploring Layers

Layer creation using script

Contents of layers

Conditional selection based on layers

Append files

Packagegroups

Summary

6. Your First Console Game

6. Your First Console Game

Hardware requirements

Pacman4Console

Let's develop our recipe

Adding a package to the root filesystem

Summary

7. Turning BeagleBone into a Home Surveillance System

7. Turning BeagleBone into a Home Surveillance System

Problem statement

Requirements

Existing solutions / literature survey

Selected solution

Let's start the fun

Client side

Get ready for running and surprises

Further enhancements

Summary

8. BeagleBone as a Wi-Fi Access Point

8. BeagleBone as a Wi-Fi Access Point

Problem statement / use case

Requirements

Literature survey

Our strategy

Enabling kernel support

Required packages

Changing upstart scripts

Recipe Hotspot-yb

Enabling hotspot-yb

Managing in packagegroups

Knowing the issues/enhancements

Summary

Index

Index

Customer Reviews

3.2 (6)

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Creating helloworld

Yocto Project provides us with helping scripts to ease our tasks. You will learn some of these scripts during the course of this book. To create our helloworld recipe, we will use one such script, called yocto-layer. This script can be found under the scripts directory in poky. Primarily, this script is meant to create a layer that is used to arrange various sets of recipes. Currently, if we have a look at the contents of our poky directory, which we created in first chapter for creation of images, we have the following directories. These directories are layers, as can be found using the find command:

 $ find . -name layer.conf 
./meta/conf/layer.conf
./meta-skeleton/conf/layer.conf
./meta-yocto-bsp/conf/layer.conf
./meta-yocto/conf/layer.conf
./meta-selftest/conf/layer.conf

All of these are Poky layers, and we cannot use any of these to keep our metadata. Technically, this is not impossible, but it is not a recommended way of development. So, we will create our own layer...

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

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Using Yocto Project with BeagleBone Black

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