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Allocating and sharing memory with user space from an I/O Kit driver
(HTML)
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QA1197: Describes the preferred technique for allocating and sharing buffers in an I/O Kit kernel driver.
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2008-10-13
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Generating a Non-Maskable Interrupt (NMI)
(HTML)
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QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
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2008-10-13
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IODeviceTree and the I/O Registry
(HTML)
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QA1120: Describes the IODeviceTree plane in the Mac OS X I/O Registry.
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2008-09-18
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ExpressCard Prevents System Sleep
(HTML)
QA1517: Describes how some ExpressCard cards can prevent system sleep and how to fix the problem.
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2007-02-28
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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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Issues with boot time KEXT loading
(HTML)
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QA1087: Explains how to solve problems with loading KEXTs at boot time.
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2004-01-15
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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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Sleep vs. Doze on Mac OS X
(HTML)
QA1309: Discusses and demonstrates sleep versus doze detection on Machintosh Mac OS X
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2003-10-09
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PCI/PCI-X slots on the Power Mac G5
(HTML)
QA1307: Discusses installing PCI/PCI-X cards of different speeds in the Power Mac G5.
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2003-09-30
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How can I tell if a PCI device has on board I/O space?
(HTML)
QA1287: Demonstrates "how to" tell if a PCI device has on board I/O space.
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2003-09-24
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IOLog and Interrupt Context
(HTML)
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QA1100: Describes when IOKit runs at primary (hardware) interrupt context.
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2002-02-13
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Power Management; Policy Maker vs. Power Controller
(HTML)
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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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Working with Configuration Variables
(HTML)
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QA1119: Explains how to delete a specific Open Firmware configuration variable without using Command-Option-P-R.
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2002-02-13
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Making sense of IOKit error codes
(HTML)
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QA1075: Explains how to interpret I/O Kit error codes.
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2002-02-07
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Energy Star PCI Device
(HTML)
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QA1108: Provides useful information for developers of Energy Star-compliant PCI devices.
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2002-01-15
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IOKit Framework Headers
(HTML)
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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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The dreaded "incompatible flag -framework" error
(HTML)
QA1096: Explains how to eliminate the incompatible flag -framework error in Project Builder.
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2001-12-05
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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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2001-09-14
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Displaying PCI Configuration Registers contents in Open Firmware
(HTML)
QA1036: Demonstrates how to display PCI Configuration Resister contents in Open Firmware.
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2001-05-18
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Determining Open Firmware version
(HTML)
HW100: Demonstrates how to find out the version of Open Firmware on your Macintosh.
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2000-10-06
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Was that a path I just saw?
(HTML)
HW101: Describes the Open Firmware path that is occasionally shown at boot time.
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2000-10-06
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What is an Open Firmware devalias?
(HTML)
HW99: Describes devaliases in Open Firmware.
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2000-10-06
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Open Firmware Memory bus speed
(HTML)
HW97: Describes a method to display memory bus speed for G3 or G4 Macintosh in Open Firmware.
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2000-09-22
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The "/aliases" node in the device tree
(HTML)
HW89: Describes the aliases node in the Open Firmware device tree.
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2000-09-05
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The "chosen" node in the device tree
(HTML)
HW88: Describes how to find the "chosen" node in the Open firmware device tree.
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2000-09-05
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The "green" PCI bus
(HTML)
HW93: Explains why the PCI bus is considered "green".
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2000-09-05
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How many PCI header types exist today?
(HTML)
HW92: Briefly describes the three PCI header types defined in the PCI 2.2 specification.
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2000-09-05
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Open Firmware device tree nodes
(HTML)
HW86: Explains the usage of the "@n" notation in Open Firmware device tree nodes.
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2000-09-05
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PCI address/data stepping
(HTML)
HW94: Explains that Apple does not support PCI address/data stepping.
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2000-09-05
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PCI class codes
(HTML)
HW91: Explains why PCI class codes are important.
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2000-09-05
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PCI Macintoshes and CardBus controllers
(HTML)
HW87: Explains why older PCI Macintoshes do not recognize a Cardbus controller.
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2000-09-05
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Locating the 1275-1994 Standard Document
(HTML)
HW85: Alerts that the Open Firmware (IEEE 1275-1994) document can't be found at the IEEE Standards Association site.
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2000-07-17
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Legacy Devices
(HTML)
HW84: Discusses why legacy devices with hard-wired I/O addresses may not work properly with Open Firmware.
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2000-03-20
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PCI Header types
(HTML)
HW78: Describes the three required types of PCI headers to be provided in its configuration header space.
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1999-11-15
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What is a CardBus host bus adapter HBA?
(HTML)
HW79: Explains what a CardBus host bus adapter (HBA) is and discusses its implementation on the Macintosh.
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1999-11-15
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What is an Open Firmware phandle, and why can't I access it from the Mac OS?
(HTML)
HW76: Explains an "Open Firmware phandle" and why it is inaccessible from the Mac OS.
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1999-11-15
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When to use PCMCIA, PC Card, and CardBus
(HTML)
HW77: Explains the differences between PCMCIA, PC Card, and CardBus.
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1999-11-15
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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.
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1999-10-11
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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.
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1999-10-11
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Using "words" in Open Firmware
(HTML)
HW73: Explains how to search for specific entries within all the global and local Open Firmware words.
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1999-10-11
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What is the return stack in Open Firmware and can I use it?
(HTML)
HW67: Describes the purpose of the Open Firmware return stack and how developers can use it.
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1999-10-11
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The AAPL, slot-name property and PCI
(HTML)
()
HW61: Discusses the use of the AAPL,slot name property for PCI
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1999-04-19
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PCI SIG
(HTML)
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HW55: Describes the meaning of the acronym PCI SIG.
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1999-03-29
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What is a tokenizer?
(HTML)
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HW58: Defines a tokenizer.
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1999-03-29
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Difference between an Open Firmware word and method
(HTML)
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HW46: Describes the differences between an Open Firmware word and an Open Firmware method.
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1999-02-15
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Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware
(HTML)
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HW47: Explains the differences between using Restart or Shut Down on Open Firmware
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1999-02-15
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Do PowerBooks have a PCI bus?
(HTML)
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HW43: Explains that a Powerbook has a PCI bus.
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1999-02-15
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PCI bus on the iMac
(HTML)
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HW42: Explains that the iMac has a PCI bus even though it has no expansion slots.
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1999-02-15
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What are configuration variables in Open Firmware?
(HTML)
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HW38: Defines the configuration variables in Open Firmware.
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1999-02-15
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What are generic names in Open Firmware?
(HTML)
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HW34: Documents the generic names in Open Firmware.
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1999-02-15
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