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Subsystem · The driver framework

IOKit

A C++ object model that turns hardware into a tree of nodes, matched at boot and unloaded on demand.

apple-oss-distributions/xnuiokit/Kernel/IOService.cppStart reading the kernel source here.Voir sur GitHub(ligne —)
IORegistry treeThe IORegistry is a parent/child tree of IOService instances rooted at the platform expert. Userspace attaches via IOUserClient.IORegistryEntryrootIOPlatformExperthardware bring-upIOPCIBridgeiokit / pciIOACPIPlatformExpertiokit / acpiAppleARMPMUiokit / armIOPlatformBatteryManagementiokit / batteryIOPCIDevicevendor 0x14e4IOPCIDevicevendor 0x8086AppleBCM43xxWi-Fi drivermatchesuserspace appIOServiceOpenIOConnectCallMethodIOUserClientiokit/Kernelmach_msgEvery node here is reachable from ioreg -l. Live tree, queried by anything (debugger, power manager, fan controller).
IOKit: structure at a glance.

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