Introduction to Device File Access Guide for Storage Devices
Guidelines for using I/O Kit and POSIX functions to develop applications that communicate with storage devices.
Organization of This Document
This document contains the following chapters:
Working With Device Files for Storage Devices guides you through a sample application that uses I/O Kit functions to find a storage device and POSIX functions to communicate with it.
Document Revision History lists the changes to this document.
See Also
The ADC Reference Library contains documents that describe various types and aspects of device access, as well as numerous sample applications.
IOKit Fundamentals describes the I/O Kit (the object-oriented driver-development framework of OS X) and provides an overview of device-access options for applications.
Accessing Hardware From Applications describes many ways applications can access devices and provides in-depth information on the device interface mechanism of the I/O Kit.
Audio, FireWire, SCSI, Storage, USB Device Access Reference contains API reference for I/O Kit methods and functions and for specific device families, such as USB.
If you're ready to create a universal binary version of your storage device-access application to run in an Intel-based Macintosh, see Universal Binary Programming Guidelines, Second Edition . That document describes the differences between the Intel and PowerPC architectures and provides tips for developing a universal binary.
A detailed description of the UNIX file system is beyond the scope of this document, but there are many books and websites you can refer to. In particular, you can get information on the POSIX standard at http://standards.ieee.org .
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