Finds the Root Power Domain IOService.
- macOS 10.0+
- Mac Catalyst 13.0+Beta
Just pass in MACH_PORT_NULL for master device port.
Returns a io_connect_t handle on the root domain. Must be released with IOServiceClose() when done.
Retrieves the current value of one of the aggressiveness factors in IOKit Power Management.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software