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I'm not a device driver developer - Mostly doing filter development - Is there any situation you think I will encounter:
As far as I know:
1) Only ISRs run in > DISPATCH_LEVEL so it's not relevant for filter developers unless some callback is called in an ISR - I don't think any callback is called at this IRQL because it's a high IRQL...
2) Completion routines can only be called in <= DISPATCH_LEVEL (Because you cannot complete an IRP in > DISPATCH_LEVEL..)
3) The only place I think a DPC can be useful for me is for timers... (KeSetTimer)
Also, I wonder:
Most of these questions are probably not that relevant for normal filtering but I'm curious anyway...
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