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Are interrupts enabled while Open Firmware is running?
(HTML)
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HW44: Explains that interrupts are disabled when Open Firmware is running.
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1999-02-15
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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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1999-03-29
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Expansion ROM device properties
(HTML)
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HW50: Describes the Open Firmware properties that should be included in a boot device's expansion ROM.
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1999-03-29
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Generating an NMI Without a Programmer's Switch
(HTML)
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QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
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2004-04-26
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HID Manager Event Data Underruns
(HTML)
QA1038: Explains how to correctly handle HID Manager event queue data underruns.
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2001-06-13
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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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2003-10-28
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IODeviceTree and the I/O Registry
(HTML)
()
QA1120: Describes the IODeviceTree plane in the Mac OS X I/O Registry.
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2008-09-18
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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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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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1999-11-15
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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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2004-01-15
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Open Firmware and the devalias node
(HTML)
HW95: Open Firmware and the devalias node
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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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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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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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2002-02-13
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Retain Counts of io_object_t Objects in IOKit.framework
(HTML)
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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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2008-09-24
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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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1999-10-11
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SDRAM Problems With Self-Powered USB Devices
(HTML)
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HW82: Alerts that non-compliant, self-powered USB devices plugged into a G4, can cause problems with low-voltage-sensitive SDRAM .
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2003-08-21
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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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1999-10-11
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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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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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1999-03-29
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