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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 |
2008-09-24
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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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Technical Q&As |
2008-09-18
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SimpleUserClient
(HTML)
(DMG)
(ZIP)
Shows how to create a user client for an I/O Kit kernel driver.
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Sample Code |
2008-08-27
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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 Notes |
2008-08-18
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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 Notes |
2008-08-14
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Disk Arbitration Framework Reference
(HTML)
Describes Disc Arbitration API, which includes information on mount/unmount notification and dissent.
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Reference |
2008-04-08
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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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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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CustomMediaIcons
(HTML)
(DMG)
(ZIP)
Providing custom media icons for storage
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Sample Code |
2007-07-10
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Multipathing with FibreChannel on Mac OS X
(HTML)
TN2173: An explanation on how FibreChannel multipathing works on Mac OS X and how to design storage hardware to take advantage of it
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Technical Notes |
2007-03-23
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SCSIHBAEmulator
(HTML)
(DMG)
(ZIP)
Demonstration of how to implement a virtual parallel tasking SCSI host bus adapter (HBA)
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Sample Code |
2007-02-20
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SCSI Architecture Model Device Interface Guide
(HTML)
(PDF)
Explains how to develop applications that communicate with or control SCSI Architecture Model devices.
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Guides |
2007-02-08
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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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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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HBA Device Driver Programming Guide
(HTML)
(PDF)
Describes how to develop a high-performance, kernel-resident driver for an HBA device.
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Guides |
2006-05-23
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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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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&As |
2005-05-10
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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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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&As |
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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Technical Q&As |
2003-10-28
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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&As |
2002-09-13
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Workaround for Asynchronous SCSIAction Crashes
(HTML)
()
Deprecated - QA1129: Explains how to workaround asynchronous SCSIAction crashes on Mac OS X.
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Technical Q&As |
2002-03-21
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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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Making sense of IOKit error codes
(HTML)
()
QA1075: Explains how to interpret I/O Kit error codes.
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Technical Q&As |
2002-02-07
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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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Adding dependencies with kmodload
(HTML)
QA1097: Illustrates how to specify dependencies when using kmodload.
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Technical Q&As |
2001-12-05
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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&As |
2001-12-05
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Open Firmware and the devalias node
(HTML)
HW95: Open Firmware and the devalias node
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Technical Q&As |
2000-09-05
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CD-ROM Driver Calls
(HTML)
Deprecated - DV22: Discusses public interface to Apple CD-ROM driver and supersedes information in AppleCD SC Developer's Guide.
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Technical Notes |
2000-08-14
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A SCSI little secret
(HTML)
HW81: Details what to expect when accessing the motherboard SCSI bus on the Blue & White G3.
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Technical Q&As |
1999-12-20
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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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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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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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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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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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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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What are configuration variables in Open Firmware?
(HTML)
()
HW38: Defines the configuration variables in Open Firmware.
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Technical Q&As |
1999-02-15
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Detecting a CD-ROM
(HTML)
()
DV18: Demonstrates CD-ROM drive detection.
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Technical Q&As |
1997-01-31
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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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ANSI SCSI Standards
(HTML)
Deprecated - DV03: Describes past Macintosh systems that did not fully support the ANSI SCSI-1 standard.
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Technical Q&As |
1995-07-01
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Getting a List of Drivers & LUNs (logical unit numbers)
(HTML)
Deprecated - DV04: Describes a legacy Mac OS technique for obtaining a list of SCSI Parallel drivers, devices, and LUNs.
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Technical Q&As |
1995-07-01
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