
Contents
About the USB DDK vii
What you’ll find in this guide ix
Assumptions ix
Building DDKs ix
Typographical conventions xii
Note to Windows users xiii
Technical support xiii
Before You Begin 11
System requirements 3
For QNX Neutrino 6.3 3
For QNX 4 3
USB devices supported 3
Known limitations 3
EHCI 3
Photon and text mode 4
Overview 52
The USB stack and library 7
Host Controller Interface (HCI) types 7
Data buffers 7
USB enumerator 7
How a class driver works 8
USB Utilities 93
USB Library Reference 134
Functions arranged by category 15
Connection functions 15
Memory-management functions 15
I/O functions 15
Pipe-management functions 16
Configuration and interface functions 16
September 10, 2007 Contents iii
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