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Allocating and sharing memory with user space from an I/O Kit driver
(HTML)
( )
QA1197: Describes the preferred technique for allocating and sharing buffers in an I/O Kit kernel driver.
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Technical Q&As |
2008-10-13
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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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Technical Q&As |
2001-09-14
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Can't attach during two-machine debugging with GDB
(HTML)
()
Deprecated - QA1019: Describes a workaround for a problem attaching during two-machine debugging on Mac OS X 10.0.x.
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Technical Q&As |
2003-06-02
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Coding in the Kernel
(HTML)
Considerations and caveats about programming in the kernel.
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Guides |
2005-11-09
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Descriptor Passing Problems
(HTML)
QA1541: Describes how to work around common problems with descriptor passing.
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Technical Q&As |
2007-10-29
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Developing for VFS
(HTML)
()
QA1242: Describes Apple's position on developing external file systems (VFS plug-ins) for Mac OS X.
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Technical Q&As |
2006-12-22
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Directories Appear as Volume Aliases
(HTML)
QA1351: Discusses how VFS plug-ins should handle device numbers to ensure compatibility with Carbon applications.
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Technical Q&As |
2004-05-25
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EmptyFS
(HTML)
(DMG)
(ZIP)
A very simple VFS plug-in that mounts a volume that is completely empty.
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Sample Code |
2006-11-09
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Energy Star PCI Device
(HTML)
()
QA1108: Provides useful information for developers of Energy Star-compliant PCI devices.
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Technical Q&As |
2002-01-15
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File System Events Programming Guide
(HTML)
(PDF)
Explains how applications can detect changes in the file system.
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Guides |
2008-03-11
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Generating a Non-Maskable Interrupt (NMI)
(HTML)
()
QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
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Technical Q&As |
2008-10-13
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Getting List of All Processes on Mac OS X
(HTML)
()
QA1123: Describes how, using Carbon and BSD respectively, to list all applications and processes.
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Technical Q&As |
2002-03-05
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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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Integrating With The Connect to Server Dialog
(HTML)
QA1387: Describes problems integrating a third-party network file system with Finder's Connect to Server dialog.
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Technical Q&As |
2006-11-16
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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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IOKitWithLibrary
(HTML)
(DMG)
(ZIP)
Shows how an I/O Kit driver can link with a C library from a separate kernel extension.
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Sample Code |
2003-08-27
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IOLog and Interrupt Context
(HTML)
()
QA1100: Describes when IOKit runs at primary (hardware) interrupt context.
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Technical Q&As |
2002-02-13
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IOPrintSuperClasses
(HTML)
(DMG)
(ZIP)
Given the name of a class, this tool will print all of the super-classes of that class.
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Sample Code |
2005-08-17
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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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KauthORama
(HTML)
(DMG)
(ZIP)
Prints each Kauth request, illustrating how Kauth interacts with high-level operations, like copying files.
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Sample Code |
2007-04-30
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Kernel Authorization
(HTML)
TN2127: Describes the kernel authorization (kauth) subsystem and its associated KPI.
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Technical Notes |
2007-01-16
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Kernel Core Dumps
(HTML)
TN2118: Explains how to gather and use remote kernel core dumps.
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Technical Notes |
2008-11-12
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Kernel Extension Programming Topics
(HTML)
(PDF)
Combines the HOWTOs that were previously documented in Hello Debugger, Hello IOKit, Hello KEXT, Packaging KEXT, and KEXT Dependencies.
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Guides |
2007-10-31
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Kernel Extensions Release Notes
(HTML)
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Release Notes |
2007-10-31
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Kernel Programming Guide
(HTML)
(PDF)
Essential information for programming in the Mac OS X kernel. Includes a high-level overview.
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Guides |
2006-11-07
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Kernel's MAC framework
(HTML)
QA1574: Cautions that the kernel's MAC framework is currently not support.
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Technical Q&As |
2008-01-04
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KPI Reference
(HTML)
Provides information on the NKE Sustainable API in Headerdoc format.
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Reference |
2006-07-17
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Mac OS X and root access
(HTML)
QA1013: Describes how to enable root access in Mac OS X.
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Technical Q&As |
2008-09-16
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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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MFSLives
(HTML)
(DMG)
(ZIP)
Sample VFS plug-in for the Macintosh File System (MFS) volume format, as used on 400KB floppies.
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Sample Code |
2006-11-09
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Network Kernel Extensions (legacy)
(HTML)
(PDF)
Describes how to write a kernel extension for adding or modifying functionality of a networking stack (Mac OS X 10.3 and earlier).
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Guides |
2006-10-03
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Network Kernel Extensions Programming Guide
(HTML)
(PDF)
Describes how to write a kernel extension for adding or modifying functionality of a networking stack (Mac OS X 10.4 and later).
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Guides |
2009-03-02
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SampleFilterScheme
(HTML)
(DMG)
(ZIP)
Demonstrates a simple filter scheme which passes all operations through to its provider unchanged.
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Sample Code |
2006-01-03
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SimpleDataQueue
(HTML)
(DMG)
(ZIP)
Implements an IODataQueue inside an I/O Kit KEXT which passes events and data to user space.
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Sample Code |
2003-01-14
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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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Supported KPIs
(HTML)
QA1575: Describes how to check whether a kernel function is part of a supported KPI.
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Technical Q&As |
2008-03-25
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TimerEventSample
(HTML)
(DMG)
(ZIP)
Shows how to set up and use an IOTimerEventSource in a kext.
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Sample Code |
2003-01-14
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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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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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Volumes Not Showing Up On The Desktop
(HTML)
QA1491: Describes how to make a volume from a third party VFS plug-in show up on the desktop.
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Technical Q&As |
2006-12-20
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