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Leopard Technical Q&As: Hardware & Drivers
Fibre Channel uses a serial architecture to connect mass storage devices to servers and other computers. Fibre Channel interfaces are available for Xserve hardware, and Fibre Channel is the primary interface for Xserve RAID hardware. Developers can use I/O Kit and Mac OS X APIs to create drivers for Fibre Channel hardware and to access files in a SAN.

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Allocating and sharing memory with user space from an I/O Kit driver (HTML) (日本語 HTML)
QA1197: Describes the preferred technique for allocating and sharing buffers in an I/O Kit kernel driver.
Generating a Non-Maskable Interrupt (NMI) (HTML) (日本語 HTML)
QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
IODeviceTree and the I/O Registry (HTML) (日本語 HTML)
QA1120: Describes the IODeviceTree plane in the Mac OS X I/O Registry.
ExpressCard Prevents System Sleep (HTML)
QA1517: Describes how some ExpressCard cards can prevent system sleep and how to fix the problem.
The "packages" node in the device tree (HTML)
HW90: Describes the "packages" node in the Open Firmware device tree.
Sending SCSI or ATA commands to storage devices (HTML) (日本語 HTML)
QA1179: Explains that Mac OS X does not implement SCSI or ATA pass-through for many mass storage devices.
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.
Power Management; Policy Maker vs. Power Controller (HTML) (日本語 HTML)
QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
IOKit Framework Headers (HTML) (日本語 HTML)
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
The dreaded "incompatible flag -framework" error (HTML)
QA1096: Explains how to eliminate the incompatible flag -framework error in Project Builder.
What are configuration variables in Open Firmware? (HTML) (日本語 HTML)
HW38: Defines the configuration variables in Open Firmware.