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Adding dependencies with kmodload
(HTML)
QA1097: Illustrates how to specify dependencies when using kmodload.
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Technical Q&A |
2001-12-05
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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.
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Sample Code |
2007-06-01
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Are interrupts enabled while Open Firmware is running?
(HTML)
( )
HW44: Explains that interrupts are disabled when Open Firmware is running.
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Technical Q&A |
1999-02-15
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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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Technical Q&A |
2004-07-07
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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.
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Technical Note |
2006-11-10
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Determining Open Firmware configuration variables
(HTML)
()
HW56: Discusses how to determine the Open Firmware variables on a system.
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Technical Q&A |
1999-03-29
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The dreaded "incompatible flag -framework" error
(HTML)
QA1096: Explains how to eliminate the incompatible flag -framework error in Project Builder.
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Technical Q&A |
2001-12-05
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Expansion ROM device properties
(HTML)
()
HW50: Describes the Open Firmware properties that should be included in a boot device's expansion ROM.
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Technical Q&A |
1999-03-29
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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.
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Reference |
2008-04-08
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FireWire Developer Note
(HTML)
Provides an overview of FireWire (IEEE 1394) and describes support for it on Mac computers.
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Guides |
2008-02-27
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FireWire Device Interface Guide
(HTML)
(PDF)
Explains how to develop applications to communicate with or control FireWire devices and units.
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Guides |
2007-02-08
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FireWire: DCL Programs Under Mac OS X
(HTML)
()
TN2072: Describes the structure and creation of DCL programs under Mac OS X.
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Technical Note |
2003-06-21
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Generating an NMI Without a Programmer's Switch
(HTML)
()
QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
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Technical Q&A |
2004-04-26
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I/O Kit Framework Reference
(HTML)
Describes the I/O Kit classes that support non-kernel access to I/O Kit objects through the device-interface mechanism.
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Reference |
2008-04-08
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Installing an I/O Kit KEXT Without Rebooting
(HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
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Technical Q&A |
2003-10-28
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IODeviceTree & the IORegistry
(HTML)
()
QA1120: Describes the IODeviceTree plane in the Mac OS X IORegistry.
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Technical Q&A |
2002-02-13
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IOKit Framework Headers
(HTML)
()
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
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Technical Q&A |
2002-01-15
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Is the Open Firmware device tree object oriented?
(HTML)
HW80: Discusses the object-oriented attributes of the Open Firmware device tree.
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Technical Q&A |
1999-11-15
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iSight Programming Guide
(HTML)
(PDF)
Describes the Apple iSight video camera and its enhancements.
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Guides |
2004-10-05
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Issues with boot time KEXT loading
(HTML)
()
QA1087: Explains how to solve problems with loading KEXTs at boot time.
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Technical Q&A |
2004-01-15
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Kernel Framework Reference
(HTML)
Describes the APIs and classes (including I/O Kit families) that support kernel-resident device drivers.
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Reference |
2008-04-08
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Making sense of IOKit error codes
(HTML)
()
QA1075: Explains how to interpret I/O Kit error codes.
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Technical Q&A |
2002-02-07
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Mapping kernel memory to user space on Mac OS X 10.2
(HTML)
()
QA1197: Describes a change to mapping kernel memory to user space affecting Mac OS X 10.2 and later.
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Technical Q&A |
2002-09-13
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Open Firmware and the devalias node
(HTML)
HW95: Open Firmware and the devalias node
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Technical Q&A |
2000-09-05
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The "packages" node in the device tree
(HTML)
HW90: Describes the "packages" node in the Open Firmware device tree.
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Technical Q&A |
2006-02-22
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PCI Type 1 Cycles
(HTML)
HW26: Describes the circumstances when the PowerMac generates a Configuration Type 1 command.
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Technical Q&A |
1995-07-15
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Power Management; Policy Maker vs. Power Controller
(HTML)
()
QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
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Technical Q&A |
2002-02-13
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Retain Counts of io_object_t Objects in IOKit.framework
(HTML)
()
QA1195: Distinguishes between the retain counts of an I/O Kit kernel object and its io_object_t user space proxy.
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Technical Q&A |
2002-09-04
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Sample code for allocating an amount of dictionary space
(HTML)
HW71: Discusses the allocation and the setting of memory for Dictionary space in Open Firmware.
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Technical Q&A |
1999-10-11
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SCSIAction and IOSCSIUserClient on Mac OS X 10.2
(HTML)
()
QA1201: Describes migrating to a new API for SCSI Parallel devices starting with Mac OS X 10.2.
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Technical Q&A |
2002-09-13
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Sending SCSI or ATA commands to storage devices
(HTML)
()
QA1179: Explains that Mac OS X does not implement SCSI or ATA pass-through for many mass storage devices.
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Technical Q&A |
2005-05-10
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Sequence Grabber - Video capture with multiple IIDC cameras
(HTML)
QA1365: Discusses factors which influence the number of IIDC cameras that can simultaniously be used for capture.
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Technical Q&A |
2004-08-25
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simpleAVC
(HTML)
(DMG)
(ZIP)
Shows how to discover and send commands to AVC devices connected by FireWire.
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Sample Code |
2003-01-14
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Understanding and Debugging Kernel Panics
(HTML)
()
TN2063: Addresses kernel panics: what they are and how to debug the code that caused the panic.
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Technical Note |
2002-11-11
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USBPrivateDataSample
(HTML)
(DMG)
(ZIP)
Demonstrates notifications when a USB device is hotplugged and associating arbitrary data with each device.
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Sample Code |
2006-10-16
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Use the Doorbell
(HTML)
()
Deprecated - FW01: Explains the function of the FireWire Serial Bus Protocol 2 (SBP2) doorbell.
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Technical Q&A |
1999-05-17
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VendorSpecificType00
(HTML)
(DMG)
(ZIP)
Demonstrates how to access vendor-specific storage device functionality using a simple interface from user space code.
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Sample Code |
2006-10-02
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What are configuration variables in Open Firmware?
(HTML)
()
HW38: Defines the configuration variables in Open Firmware.
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Technical Q&A |
1999-02-15
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What are snag keys in Open Firmware?
(HTML)
()
HW35: Explains Open Firmware snag keys, including examples of their function.
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Technical Q&A |
1999-02-15
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What is the "dump" word and how do I use it?
(HTML)
HW68: Describes the function of the Open Firmware word "dump" and how it can be used.
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Technical Q&A |
1999-10-11
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What is unsolicited status?
(HTML)
()
FW03: Explains the meaning and usage of the SBP-2 unsolicited status message.
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Technical Q&A |
1999-05-17
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What numeric base is the default for the Open Firmware user interface?
(HTML)
HW65: Describes how the default numeric base used by the Open Firmware user interface is hexadecimal.
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Technical Q&A |
1999-10-11
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Why did the name of the PCI bridge change?
(HTML)
()
HW59: Explains the name change of the PCI bridge to the generic name "pci" in Open Firmware.
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Technical Q&A |
1999-03-29
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