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GNU/Linux Rapid Embedded Programming

You're reading from GNU/Linux Rapid Embedded Programming Your one-stop solution to embedded programming on GNU/Linux

Product type Paperback

Published in Mar 2017

Publisher Packt

ISBN-13 9781786461803

Length 732 pages

Edition 1st Edition

Languages

C

Tools

Embedded Systems

Concepts

System Programming

Author (1):

Rodolfo Giometti

View More author details

Table of Contents (20) Chapters

Preface

1. Installing the Developing System FREE CHAPTER

2. Managing the System Console

3. C Compiler, Device Drivers, and Useful Developing Techniques

4. Quick Programming with Scripts and System Daemons

5. Setting Up an Embedded OS

6. General Purposes Input Output signals – GPIO

7. Serial Ports and TTY Devices - TTY

8. Universal Serial Bus - USB

9. Inter-Integrated Circuits - I2C

10. Serial Peripheral Interface - SPI

11. 1-Wire - W1

12. Ethernet Network Device - ETH

13. Wireless Network Device - WLAN

14. Controller Area Network - CAN

15. Sound Devices - SND

16. Video devices - V4L

17. Analog-to-Digital Converters - ADC

18. Pulse-Width Modulation - PWM

19. Miscellaneous Devices

Sound in Linux

The sound support in Linux bears with the Open Sound System (OSS), which is also available for several UNIX-like systems. However, around 1998, this system lacked some important functionalities for a good sound system, such as MIDI hardware support, multiple audio channel mixing, and full duplex operations. That's why, a new API was born trying to solve these issues: the Advanced Linux Sound Architecture (ALSA).

Starting from kernel release 2.6, the ALSA replaced the OSS architecture even if, during that time, several improvements were into the OSS implemented too.

The ALSA architecture has hardware MIDI support, multiple audio channel mixing, and full duplex operations, and it's designed to work well on multiprocessor systems since it's thread safe. The ALSA's API is really complex (especially compared with the OSS one), but it allows developers to do incredible things with it, especially using the related user-space library named alsa-lib and ALSA plugins...

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Authors (1)

Rodolfo Giometti

Rodolfo Giometti

Rodolfo Giometti is an engineer, IT specialist, GNU/Linux expert and software libre evangelist. He is the author of the books BeagleBone Essentials, BeagleBone Home Automation Blueprints and GNU/Linux Rapid Embedded Programming by Packt Publishing and maintainer of the LinuxPPS projects. He still actively contributes to the Linux source code with several patches and new device drivers for industrial applications devices. During his 20+ years of experience, he has worked on the x86, ARM, MIPS, and PowerPC-based platforms. Now, he is the co-chief at HCE Engineering S.r.l., where he designs new hardware and software systems for the quick prototyping in industry environment, control automation, and remote monitoring.

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