Get up to speed with the most important concepts in driver
development and focus on common embedded system requirements such
as memory management, interrupt management, and locking mechanisms
Key Features Write feature-rich and customized Linux device drivers
for any character, SPI, and I2C device Develop a deep understanding
of locking primitives, IRQ management, memory management, DMA, and
so on Gain practical experience in the embedded side of Linux using
GPIO, IIO, and input subsystems Book DescriptionLinux is by far the
most-used kernel on embedded systems. Thanks to its subsystems, the
Linux kernel supports almost all of the application fields in the
industrial world. This updated second edition of Linux Device
Driver Development is a comprehensive introduction to the Linux
kernel world and the different subsystems that it is made of, and
will be useful for embedded developers from any discipline. You'll
learn how to configure, tailor, and build the Linux kernel. Filled
with real-world examples, the book covers each of the most-used
subsystems in the embedded domains such as GPIO, direct memory
access, interrupt management, and I2C/SPI device drivers. This book
will show you how Linux abstracts each device from a hardware point
of view and how a device is bound to its driver(s). You'll also see
how interrupts are propagated in the system as the book covers the
interrupt processing mechanisms in-depth and describes every kernel
structure and API involved. This new edition also addresses how not
to write device drivers using user space libraries for GPIO
clients, I2C, and SPI drivers. By the end of this Linux book,
you'll be able to write device drivers for most of the embedded
devices out there. What you will learn Download, configure, build,
and tailor the Linux kernel Describe the hardware using a device
tree Write feature-rich platform drivers and leverage I2C and SPI
buses Get the most out of the new concurrency managed workqueue
infrastructure Understand the Linux kernel timekeeping mechanism
and use time-related APIs Use the regmap framework to factor the
code and make it generic Offload CPU for memory copies using DMA
Interact with the real world using GPIO, IIO, and input subsystems
Who this book is forThis Linux OS book is for embedded system and
embedded Linux enthusiasts/developers who want to get started with
Linux kernel development and leverage its subsystems. Electronic
hackers and hobbyists interested in Linux kernel development as
well as anyone looking to interact with the platform using GPIO,
IIO, and input subsystems will also find this book useful.
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