> > But my question remains -purely out of interest- why non-rt devices and > rt devices can _fundamentally_ not share an IRQ? >
My understanding is adeos-ipipe/xenomai provide an interrupt abstraction layer underneath Linux. If there is more than one consumer of an interrupt it has to be copied/forwarded to all those that need it. If an IRQ is shared with an RT application, and the Linux kernel I would imagine this would create some level of indeterministic RT software. This is probably a good question for the xenomai, or adeos-ipipe mailing list. I am new to these packages, so hopefully I am not providing misinformation on its functionality. -Rob
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