Building and running modules - Ch. 2 of Linux Device Drivers, 3rd edition
Linux Device Drivers
teaches you how to write your own drivers, the distinct "black boxes" that make a particular piece of hardware respond to a well-defined internal programming interface and how to hack around in related parts of the kernel.
This chapter introduces all the essential concepts about modules and kernel programming. In these few pages, we build and run a complete (if relatively useless) module, and look at some of the basic code shared
by all modules. Developing such expertise is an essential foundation for any kind of modularized driver. To avoid throwing in too many concepts at once, this chapter talks only about modules, without referring to any specific device class. All the kernel items (functions, variables, header files, and macros) that are introduced
here are described in a reference section at the end of the chapter...
Read the rest of the excerpt in this PDF.
Excerpted from Linux Device Drivers, Third Edition
by Jonathan Corbet, Alessandro Rubini, and Greg Kroah-Hartman (ISBN: 0-596-00590-3). Copyright 2005, O'Reilly Media, Inc.
All rights reserved.
This was first published in June 2005
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