Programming Guide for Linux USB Device Drivers

Short Description
Programming Guide for Linux USB Device. Drivers. (c) 2000 by Detlef Fliegl, deti@fliegl.de. http://usb.cs.tum.edu. $Id: usbdoc.tex,v 1.32 2000/12/25 …

Website: www.lrr.in.tum.de | Filesize: 98kb

Content
Programming Guide for Linux USB Device
Drivers
(c) 2000 by Detlef Fliegl, deti@fliegl.de
http://usb.cs.tum.edu
$Id: usbdoc.tex,v 1.32 2000/12/25 18:36:26 deti Exp $
This document can be found on http://usb.cs.tum.edu/usbdoc and can be
downloaded from http://usb.cs.tum.edu/download/usbdoc
This document may not be published, printed or used in excerpts without
explicit permission of the author.
11
Preface
The development of the Linux USB subsystem started in 1997 and in the meantime
it was redesigned many times. This implied various changes of its internal
structure and its API too. So it is even hard for experienced device driver developers
to keep up to date with all ongoing discussions and current changes.
This document should give detailed information about the current state of
the USB subsystem and its API for USB device drivers. The first section will
deal with the basics of USB devices. You will learn about different types of
devices and their properties. Going into detail you will see how USB devices
communicate on the bus. The second section gives an overview of the Linux
USB subsystem [2] and the device driver framework. Then the API and its data
structures will be explained step by step. The last section of this document
contains a reference of all API calls and their return codes….