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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&As |
1999-02-15
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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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Technical Q&As |
1999-10-11
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Checking for the Printer Driver
(HTML)
Deprecated - DV42: Describes a legacy Mac OS technique avoiding system hangs when using serial drivers on USB systems.
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Technical Q&As |
2000-06-19
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Detecting low printer ink levels
(HTML)
TN2144: How to detect printer supply levels using a low ink tool
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Technical Notes |
2005-06-29
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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&As |
1999-03-29
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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&As |
1999-03-29
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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&As |
2004-04-26
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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&As |
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&As |
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&As |
1999-11-15
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New PPD keywords available in Mac OS X version 10.3
(HTML)
QA1352: Describes the new PPD keywords available for CUPS filters in Mac OS X 10.3.
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Technical Q&As |
2004-05-26
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Obtaining 16 Bits-Per-Color Data with CUPS Raster Printing
(HTML)
TN2149: Obtaining 16 Bits-Per-Color Data with CUPS Raster Printing
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Technical Notes |
2005-08-24
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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&As |
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&As |
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&As |
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&As |
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&As |
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&As |
2002-09-13
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SCSIOldAndNew
(HTML)
(DMG)
(ZIP)
Demonstrates a backward-compatible technique for communicating with SCSI parallel devices on Mac OS X.
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Sample Code |
2006-12-07
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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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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&As |
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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Technical Q&As |
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&As |
1999-03-29
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Why does logging keep my Printer Module from working?
(HTML)
()
Deprecated - QA1182: Describes some problems with standard printf logging in a Printer Module on Jaguar.
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Technical Q&As |
2002-11-06
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Why don't all of my PDE localizations show up in all applications?
(HTML)
()
QA1185: Explains why some PDE localizations might not appear in all applications.
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Technical Q&As |
2002-10-16
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