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Hello. Using an INF one can specify this line to attach to the device stack of PNP1234
%DeviceDesc% = Bla_Install.ntamd64, ACPI\PNP1234
How can you do that programatically without the INF. For example all you need to do is find the DeviceObject representing that HardwareId, then it's easy to attach. But I can't seem to find the correct API (if there is one), to convert that HardwareId to something else more useful.
IoGetDeviceObjectPointer("ACPI\\PNP1234"..) getting STATUS_OBJECT_PATH_SYNTAX_BAD, but that requires a device in the object namespace.
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