Hi,
I'm trying to get my head around how the structureOutputDescriptor and
structureInputDescriptor parameters in struct IOExternalMethodArguments
are supposed to work. In my IOUserClient::externalMethod() method
callback, they're always NULL, and calling the superclass doesn't help
either. I also tried the indirection via IOExternalMethodAction, but
the MemoryDescriptors won't get initialized.
>From userspace, I'm using the new age IOConnect* functions. Is there
anything more I need to pay attention to?
Any pointer appreciated.
Daniel
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