On Sun, 12 Jun 2005, Ingo Molnar wrote:
> ok, this method should work fine. I suspect you increased the parport
> IRQ's priority to the maximum on the PREEMPT_RT kernel, correct? Was
> there any userspace thread on the target system (receiving the parport
> request and sending the reply), or was it all done in a kernelspace
> parport driver?
Whatever interrupt is used should be SA_NODELAY if you want maximum
response. The interrupt would need to be validated though , not to lock
mutexes.
Daniel
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