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Allocating and sharing memory with user space from an I/O Kit driver
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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)
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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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Retain Counts of io_object_t Objects in IOKit.framework
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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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IODeviceTree and the I/O Registry
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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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Tips on USB driver matching for Mac OS X
(HTML)
QA1076: Gives some tips on getting USB driver matching to work.
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2008-08-14
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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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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
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2006-02-28
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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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Sending SCSI or ATA commands to storage devices
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QA1179: Explains that Mac OS X does not implement SCSI or ATA pass-through for many mass storage devices.
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2005-05-10
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Installing smart card reader drivers
(HTML)
QA1359: Updates obsolete information contained in the pcscd(8) man page on Mac OS X Jaguar and Panther.
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2004-08-30
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Issues with boot time KEXT loading
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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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SDRAM Problems With Self-Powered USB Devices
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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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Power Management; Policy Maker vs. Power Controller
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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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Making sense of IOKit error codes
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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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IOKit Framework Headers
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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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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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What are configuration variables in Open Firmware?
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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 snag keys in Open Firmware?
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HW35: Explains Open Firmware snag keys, including examples of their function.
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1999-02-15
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