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The "/aliases" node in the device tree
(HTML)
HW89: Describes the aliases node in the Open Firmware device tree.
|
Open Firmware, PCI and PC Card |
Technical Q&As |
2000-09-05
|
|
12-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 12-inch PowerBook G4 introduced in January 2005.
|
Apple Hardware |
Guides |
2005-02-04
|
|
128Mb SDRAM ICs limitation on original "Bronze Keyboard" Powerbook G3
(HTML)
QA1040: Outlines Memory ICs design limitation on original "Bronze Keyboard" Powerbook G3.
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Apple Hardware |
Technical Q&As |
2001-06-21
|
|
15-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in February 2008.
|
Apple Hardware |
Guides |
2008-03-04
|
|
15-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in November 2007.
|
Apple Hardware |
Guides |
2007-12-14
|
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15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in June 2007.
|
Apple Hardware |
Guides |
2007-06-11
|
|
15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in October 2006.
|
Apple Hardware |
Guides |
2007-05-03
|
|
15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in October 2006.
|
Apple Hardware |
Guides |
2007-05-03
|
|
15-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch PowerBook G4 introduced in October 2005.
|
Apple Hardware |
Guides |
2005-10-27
|
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17-inch iMac for Education Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch iMac for Education computer introduced in July 2006.
|
Apple Hardware |
Guides |
2006-11-07
|
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17-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in February 2008.
|
Apple Hardware |
Guides |
2008-03-04
|
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17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in November 2007.
|
Apple Hardware |
Guides |
2007-12-14
|
|
17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in June 2007.
|
Apple Hardware |
Guides |
2007-06-11
|
|
17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in October 2006.
|
Apple Hardware |
Guides |
2007-04-04
|
|
17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in April 2006.
|
Apple Hardware |
Guides |
2007-04-03
|
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17-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch PowerBook G4 introduced in October 2005.
|
Apple Hardware |
Guides |
2005-10-19
|
The AAPL, slot-name property and PCI
(HTML)
( )
HW61: Discusses the use of the AAPL,slot name property for PCI
|
Apple Hardware, Open Firmware, PCI and PC Card |
Technical Q&As |
1999-04-19
|
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Accessing Hardware From Applications
(HTML)
(PDF)
Tips and guidelines for developing applications that communicate with or control devices.
|
General |
Guides |
2007-02-08
|
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Affinity API Release Notes for Mac OS X v10.5
(HTML)
Explains how to influence which CPU core runs a group of threads (for performance optimization).
|
Performance |
Release Notes |
2007-10-31
|
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AirPort Developer Note
(HTML)
Describes Apple's implementation of 802.11 wireless LAN standards on Mac computers.
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AirPort/802.11 |
Guides |
2008-04-28
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All Hardware Products
(HTML)
A list of links to all Apple hardware developer notes.
|
Apple Hardware |
Guides |
|
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Allocating and sharing memory with user space from an I/O Kit driver
(HTML)
()
QA1197: Describes the preferred technique for allocating and sharing buffers in an I/O Kit kernel driver.
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AirPort/802.11, ATA, Audio, Bluetooth, Ethernet, Fibre Channel, FireWire, Networking, PCI and PC Card, Scanners, SCSI, Serial, Storage, USB |
Technical Q&As |
2008-10-13
|
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Apple Xserve Diagnostics User's Guide
(PDF)
New document that explains how to use Apple Xserve Diagnostics tool to test server hardware.
|
Apple Hardware |
Guides |
2007-12-04
|
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AppleFWAudio Vendor Specific Override Driver
(HTML)
(DMG)
(ZIP)
This KEXT allows third-party vendors to customize AppleFWAudio with their own device-specific information.
|
Audio, FireWire |
Sample Code |
2007-06-01
|
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Are the Name Registry device tree nodes unique?
(HTML)
Deprecated - HW64: Discusses whether Name Registry nodes copied from the Open Firmware device tree are unique.
|
Apple Hardware, Audio, Networking, Open Firmware, PCI and PC Card, Printing |
Technical Q&As |
1999-10-11
|
|
ATA Interface Modules
(HTML)
TN1192: Describes how to write device drivers for ATA host bus controllers, ie. ATA Interface Module.
|
ATA |
Technical Notes |
1999-12-01
|
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Audio Developer Note
(HTML)
Describes the analog and digital audio capabilities of Mac computers.
|
Audio |
Guides |
2008-04-28
|
|
Audio Device Driver Programming Guide
(HTML)
(PDF)
Explains how to develop kernel-resident drivers for audio devices.
|
Audio |
Guides |
2009-03-04
|
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AudioCDSample
(HTML)
(DMG)
(ZIP)
Demonstrates how to discover audio CDs and access the TOC information presented by the CD-DA filesystem.
|
Audio, Storage |
Sample Code |
2005-10-04
|
|
Available FireWire Isochronous Bandwidth
(HTML)
QA1356: Discusses attempting to "pre-flight" an isochronous bandwidth allocation request by reading the currently available bandwidth.
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Audio, FireWire, QuickTime |
Technical Q&As |
2004-07-07
|
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Avoiding Kernel Event Conflicts
(HTML)
QA1063: Documents the namespace for the vendor_code field of the kern_event_msg structure.
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PCI and PC Card |
Technical Q&As |
2001-09-14
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BlitVBL
(HTML)
(DMG)
(ZIP)
Shows how to have Mac OS X try its best to sync to the VBL for you.
|
Performance |
Sample Code |
2003-01-14
|
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Bluetooth Developer Note
(HTML)
Provides an overview of Bluetooth technology and describes its implementation in Mac computers.
|
Bluetooth |
Guides |
2008-04-28
|
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Bluetooth Device Access Guide
(HTML)
(PDF)
Explains how to develop applications that access Bluetooth-enabled devices.
|
Bluetooth |
Guides |
2007-12-11
|
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Bluetooth Framework Reference
(HTML)
Describes the C and Objective-C APIs that support user-space access to Bluetooth devices.
|
Bluetooth |
Reference |
2008-10-15
|
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Bluetooth Radio Power Class for Apple Systems
(HTML)
()
QA1278: Notes Preferred Bluetooth Transmitter Characteristics for products designed for Apple Systems.
|
Apple Hardware, Bluetooth, Performance |
Technical Q&As |
2003-08-06
|
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Bluetooth User Interface Framework Reference
(HTML)
Describes the C and Objective-C APIs that provide a consistent user interface to Bluetooth services.
|
Bluetooth |
Reference |
2008-04-08
|
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Bonjour enforces the service type format in Panther
(HTML)
QA1198: Explains why registering a Bonjour service might fail on Panther.
|
Bonjour, Networking |
Technical Q&As |
2004-03-23
|
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Bonjour service types used in Mac OS X
(HTML)
QA1312: Provides a list of common Bonjour service types used in Mac OS X.
|
Bonjour |
Technical Q&As |
2004-07-14
|
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Bonjour TXT record rate limiting in Panther
(HTML)
QA1293: Explains how mDNSResponder implements TXT record rate limiting in Panther.
|
Bonjour |
Technical Q&As |
2003-10-23
|
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Boot Blocks
(HTML)
Deprecated - DV03: Warns that Boot Block form and function will change and describes undocumented Boot Blocks features.
|
Storage |
Technical Notes |
1987-03-01
|
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Booting after invoking the Open Firmware user interface
(HTML)
()
HW48: Tells how to boot a system after entering the Open Firmware user interface.
|
Apple Hardware, Storage |
Technical Q&As |
1999-02-15
|
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BSDLLCTest
(HTML)
(DMG)
(ZIP)
Program sample demonstrates how to send and receive raw LLC Ethernet packets.
|
Ethernet, Networking |
Sample Code |
2003-06-12
|
|
Building Customized User Client Drivers for USB Devices
(HTML)
Learn how to write the setup code for card readers, bill validators, and other devices.
|
Human Interface Device & Force Feedback, USB |
Articles |
2006-06-26
|
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Building Universal I/O Kit Drivers
(HTML)
TN2163: How to build a universal I/O Kit kernel driver while avoiding common pitfalls.
|
ATA, Audio, Ethernet, Fibre Channel, FireWire, Networking, PCI and PC Card, SCSI, Serial, Storage, USB |
Technical Notes |
2008-08-18
|
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Can you explain the words "begin" and "again"?
(HTML)
HW70: Explains the Forth looping words "begin" and "again" and how to escape such a loop.
|
Open Firmware, PCI and PC Card |
Technical Q&As |
1999-10-11
|
|
CCL Modem Scripting Guide
(HTML)
(PDF)
|
Networking, Serial, USB |
Guides |
2007-06-28
|
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CCL Modem Scripting Release Notes
(HTML)
Explains changes to modem CCLs for Mac OS X v10.5 and what to do to change existing and supersede older scripts.
|
Networking, Serial, USB |
Release Notes |
2007-10-31
|
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CD-ROM Detection
(HTML)
(DMG)
(ZIP)
Shows how to determine whether a drive is a CD-ROM drive.
|
Storage |
Sample Code |
2003-01-14
|
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CD-ROM Driver Calls
(HTML)
Deprecated - DV22: Discusses public interface to Apple CD-ROM driver and supersedes information in AppleCD SC Developer's Guide.
|
ATA, SCSI, Storage |
Technical Notes |
2000-08-14
|
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CDROMSample
(HTML)
(DMG)
(ZIP)
Demonstrates how to find CD-ROM media and read sectors from that media on Mac OS X.
|
Storage |
Sample Code |
2006-01-31
|
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Changing the configuration variable in Open Firmware
(HTML)
()
HW40: Tells how to change the configuration variable in Open Firmware.
|
Open Firmware |
Technical Q&As |
1999-02-15
|
|
Changing the TCP Window Size
(HTML)
NW47: Describes how to change the TCP window size in Open Transport.
|
Ethernet, Networking |
Technical Q&As |
1997-03-14
|
|
Checking for the Printer Driver
(HTML)
Deprecated - DV42: Describes a legacy Mac OS technique avoiding system hangs when using serial drivers on USB systems.
|
Printing |
Technical Q&As |
2000-06-19
|
|
Checkout Lets You 'Get a Mac, Start a Store': Madebysofa Does It with Python and Cocoa
(HTML)
Success story on how Mac-only Checkout was built using Python and Cocoa.
|
USB |
Articles |
2007-07-10
|
|
The "chosen" node in the device tree
(HTML)
HW88: Describes how to find the "chosen" node in the Open firmware device tree.
|
Apple Hardware, Ethernet, Networking, PCI and PC Card |
Technical Q&As |
2000-09-05
|
|
Clearing mDNSResponder's cached records
(HTML)
QA1310: Clearing the Bonjour service cache (mDNSResponder's cached records) for testing purposes.
|
Bonjour |
Technical Q&As |
2004-02-11
|
|
Cocoa OpenGL
(HTML)
(DMG)
(ZIP)
Demonstrates using Cocoa with OpenGL, including window setup and event handling.
|
Graphics & Imaging |
Sample Code |
2007-10-22
|
|
Code Signing Guide
(HTML)
(PDF)
Explains how you can sign your code and why you should.
|
Security |
Guides |
2008-11-19
|
|
Code Signing Release Notes
(HTML)
|
Security |
Release Notes |
2007-10-31
|
|
Coding in the Kernel
(HTML)
Considerations and caveats about programming in the kernel.
|
General |
Guides |
2005-11-09
|
|
Common QA and Roadmap for USB Software Development on Mac OS X
(HTML)
QA1370: Roadmap for development of USB Software on Mac OS X and some Common Questions and Answers
|
USB |
Technical Q&As |
2006-02-28
|
|
CPUGestalt
(HTML)
(DMG)
(ZIP)
Deprecated - Shows how to determine the processor type of the Macintosh you're running on.
|
Apple Hardware |
Sample Code |
2003-10-27
|
|
CustomMediaIcons
(HTML)
(DMG)
(ZIP)
Providing custom media icons for storage
|
SCSI, Storage, USB |
Sample Code |
2007-07-10
|
|
DDR SDRAM ICs for PowerBooks and iBooks that use Memory bus slewing
(HTML)
QA1344: Specifies DDR SDRAM IC optimization for PowerBooks and iBooks that use Memory bus slewing.
|
Apple Hardware, Open Firmware |
Technical Q&As |
2004-03-18
|
|
Dealing with PCI Expansion Chassis Problems
(HTML)
()
TN1135: Discusses solutions for compatibility issues between PCI cards and attached expansion chassis.
|
PCI and PC Card |
Technical Notes |
1998-08-01
|
|
Detecting a CD-ROM
(HTML)
()
DV18: Demonstrates CD-ROM drive detection.
|
Apple Hardware, ATA, SCSI, Storage |
Technical Q&As |
1997-01-31
|
|
Detecting low printer ink levels
(HTML)
TN2144: How to detect printer supply levels using a low ink tool
|
Printing |
Technical Notes |
2005-06-29
|
|
Detecting specific ROM-in-RAM Mac
(HTML)
()
Deprecated - HW49: Identifying a Mac by name ("iMac"), and better alternatives for determining specific features ("has Firewire").
|
Apple Hardware |
Technical Q&As |
1999-10-05
|
|
Determining Open Firmware version
(HTML)
HW100: Demonstrates how to find out the version of Open Firmware on your Macintosh.
|
Open Firmware, PCI and PC Card |
Technical Q&As |
2000-10-06
|
|
Determining RAM size & location in New World Machines
(HTML)
QA1065: Demonstrates Open Firmware method of determining RAM size & location in New World Machines.
|
Apple Hardware, Performance |
Technical Q&As |
2001-08-01
|
|
Determining the version of Open Firmware on your Mac
(HTML)
()
HW60: Describes a method to display the version of Open Firmware on a Macintosh.
|
Apple Hardware, Performance |
Technical Q&As |
1999-03-29
|
|
Device File Access Guide for Serial Devices
(HTML)
(PDF)
Guidelines for using I/O Kit and POSIX functions to develop applications that communicate with serial devices.
|
Serial |
Guides |
2005-12-06
|
|
Device File Access Guide for Storage Devices
(HTML)
(PDF)
Guidelines for using I/O Kit and POSIX functions to develop applications that communicate with storage devices.
|
Storage |
Guides |
2007-03-06
|
|
Difference between an Open Firmware word and method
(HTML)
()
HW46: Describes the differences between an Open Firmware word and an Open Firmware method.
|
Open Firmware, PCI and PC Card |
Technical Q&As |
1999-02-15
|
|
Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware
(HTML)
()
HW47: Explains the differences between using Restart or Shut Down on Open Firmware
|
Apple Hardware, PCI and PC Card |
Technical Q&As |
1999-02-15
|
|
Digital CD Audio
(HTML)
()
TN1187: Describes digital audio on the Macintosh.
|
Audio |
Technical Notes |
2000-04-01
|
|
Disabling Processor Cores on a Multi-Core System
(HTML)
()
QA1141: Describes how to disable processor cores on a multi-core system for testing purposes.
|
Apple Hardware, Open Firmware, Performance |
Technical Q&As |
2008-09-16
|
|
Discovering all advertised Bonjour service types
(HTML)
QA1337: Explains how to discover all Bonjour service types being advertised on the local network.
|
Bonjour, Networking |
Technical Q&As |
2004-06-01
|
|
Disk Arbitration Framework Reference
(HTML)
Describes Disc Arbitration API, which includes information on mount/unmount notification and dissent.
|
ATA, Fibre Channel, General, SCSI, Storage |
Reference |
2008-04-08
|
|
Displaying PCI Configuration Registers contents in Open Firmware
(HTML)
QA1036: Demonstrates how to display PCI Configuration Resister contents in Open Firmware.
|
Apple Hardware, PCI and PC Card, Performance |
Technical Q&As |
2001-05-18
|
|
dist_fft
(HTML)
(DMG)
(ZIP)
Gigaelement FFTs on Apple G5 clusters
|
Performance |
Sample Code |
2004-08-23
|
|
dl command in 1 machine mode
(HTML)
()
HW51: Describes using the "dl" command in 1 machine mode.
|
Apple Hardware |
Technical Q&As |
1999-03-29
|
|
DNS Service Discovery Java Reference
(HTML)
Describes DNS Service Discovery API features of ZeroConf networking for Java on Mac OS X in Javadoc format.
|
Bonjour |
Reference |
2008-10-15
|
|
Do PowerBooks have a PCI bus?
(HTML)
()
HW43: Explains that a Powerbook has a PCI bus.
|
Apple Hardware, PCI and PC Card |
Technical Q&As |
1999-02-15
|
|
DR Emulator Caches
(HTML)
()
Deprecated - HW28: Describes the Dynamic Recompiling emulator's cache, including a description of when to flush the cache.
|
Apple Hardware |
Technical Q&As |
1996-04-08
|
|
DRAM DIMM power pin connections for Macintosh Computers
(HTML)
()
QA1271: Discusses design considerations for DRAM DIMM power pin connections for Macintosh Computers.
|
Apple Hardware, Performance |
Technical Q&As |
2003-07-04
|
|
The dreaded "incompatible flag -framework" error
(HTML)
QA1096: Explains how to eliminate the incompatible flag -framework error in Project Builder.
|
ATA, Ethernet, Fibre Channel, FireWire, Networking, PCI and PC Card, SCSI, Serial, Storage, USB |
Technical Q&As |
2001-12-05
|
|
eMac Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the eMac computer introduced in May 2005.
|
Apple Hardware |
Guides |
2005-05-03
|
|
Empty Memory Objects
(HTML)
()
QA1259: Describes how two memory management edge cases are handled by the common Mac OS memory allocators.
|
Apple Hardware, Performance |
Technical Q&As |
2003-04-21
|
|
Energy Star PCI Device
(HTML)
()
QA1108: Provides useful information for developers of Energy Star-compliant PCI devices.
|
Apple Hardware, PCI and PC Card, Performance |
Technical Q&As |
2002-01-15
|
|
enetlognke
(HTML)
(DMG)
(ZIP)
Interface filter based on supported Kernel Programming Interfaces for Tiger.
|
Networking |
Sample Code |
2005-08-10
|
|
Ethernet Developer Note
(HTML)
Provides an overview of Ethernet technology and describes its implementation in Mac computers.
|
Ethernet |
Guides |
2008-04-28
|
|
Explanation of SDRAM configuration Nomenclature
(HTML)
HW75: Explains the three-part "Device configuration" numbers for SDRAM in the Power Mac G4 Computer Developer Note.
|
Apple Hardware, Performance |
Technical Q&As |
1999-10-18
|
|
ExpressCard Prevents System Sleep
(HTML)
QA1517: Describes how some ExpressCard cards can prevent system sleep and how to fix the problem.
|
AirPort/802.11, ATA, Ethernet, Fibre Channel, Networking, PCI and PC Card, Serial, USB |
Technical Q&As |
2007-02-28
|
|
Faster DDR DRAM in the 867MHz Power Mac G4 (Mirrored Drive Doors)
(HTML)
()
QA1191: Confirms the use of faster DDR DRAM in the 867MHz Power Mac G4 (Mirrored Drive Doors).
|
Apple Hardware, Performance |
Technical Q&As |
2002-08-19
|
|
FireWire Audio User Library Framework Reference
(HTML)
Describes the API that supports user-space access to FireWire audio devices and enables the creation of virtual FireWire audio devices.
|
Audio, FireWire |
Reference |
2008-04-08
|
|
FireWire Developer Note
(HTML)
Provides an overview of FireWire (IEEE 1394) and describes support for it on Mac computers.
|
FireWire |
Guides |
2008-04-28
|
|
FireWire Device Interface Guide
(HTML)
(PDF)
Explains how to develop applications to communicate with or control FireWire devices and units.
|
FireWire |
Guides |
2007-02-08
|
|
FireWire: DCL Programs Under Mac OS X
(HTML)
()
TN2072: Describes the structure and creation of DCL programs under Mac OS X.
|
FireWire |
Technical Notes |
2003-06-21
|
