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what's a good thing for using DSR when interrupt happen ???
- To: <ecos-discuss at sources dot redhat dot com>
- Subject: [ECOS] what's a good thing for using DSR when interrupt happen ???
- From: "Tony Ko" <nhko at gctsemi dot com>
- Date: Wed, 29 Aug 2001 19:32:53 +0900
hi.
I understand DSR is used for scheduling-based-process for interrupt
hadling.
and I know DSR is used to avoid frequent ISR.
but what about this case, serial port interrupt ?
when interrupt occur, ISR is called and the ISR makes DSR called later.
and then, when finishing ISR, Kernel schedules again, then DSR is
called first than other ready-state -thread.
in this case, DSR is called right after ISR.
then, what's good thing for using DSR?
thanks in advance.
tony.