Returns the first child of a registry entry in a plane.
- macOS 10.0+
- Mac Catalyst 13.0+
The registry entry whose child to look up.
The name of an existing registry plane. Plane names are defined in IOKitKeys.h, eg. kIOServicePlane.
The first child of the registry entry, on success. The child must be released by the caller.
A kern_return_t error code.
This function will return the child which first attached to a registry entry in a plane.
Create a matching dictionary that specifies an IOService match based on BSD device name.
Creates and returns a mach port suitable for receiving IOKit messages of the specified type.
Returns the mach port used to initiate communication with IOKit.
Creates and returns a notification object for receiving IOKit notifications of new devices or state changes.
Returns kernel retain count of an IOKit object. Identical to IOObjectGetKernelRetainCount() but available prior to Mac OS 10.6.
Checks two object handles to see if they represent the same kernel object.
Retains an object handle previously returned by IOKitLib.
Look up registered IOService objects that match a matching dictionary, and install a notification request of new IOServices that match.
Close a connection to an IOService and destroy the connect handle.
Create a matching dictionary that specifies an IOService class match.