Re: Interrupt Synchronization at PASSIVE_LEVEL

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"David Craig" wrote:

You must use an interrupt spinlock. Acquiring it will ensure you are at the
correct IRQL. This also applies to regular spinlocks but avoid them, if
possible, by doing a good design.

"shivaprasad" <shivaprasad@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:793E07D6-DCA8-44B8-8C54-859FCA329731@xxxxxxxxxxxxxxxx
Hi,

Im working on Sdio2com driver development for WinXP.I have registered
callback routine for sdiointerrupt and CallbackAtDpcLevel is set to
false(i.e
PASSIVE_LEVEL).
Now i have some functions which will use some resource which is shared
with
the interrupt routine(callback routine).Question is how to synchronize
these
two.
For using spinlocks and mutexes the driver should be running above
APC_LEVEL.

Is there any method for synchronization???


Im not creating interrupt object for the interrupt.For sdio we will get only
interrupt callback routine.My driver is running in PASSIVE_LEVEL,so i cannot
use any of the spinlocks...
.

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