I was under the impression that the X11 folks wanted IRQ notifications for writing good X screen drivers. In addition, it would make it easier to move some drivers to user space with the capability to receive user level IRQ notifications and implement user level IRQ handlers.
Good point about the patch, assuming that people hardly disable networking, I was wondering if it is a good idea to write an extensible version of rtnetlink to provide user space events. What I liked about rtnetlink is that it imposes no format on the communication except for the rtattr.
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