Alerting upper drivers to lower driver interrupt

NTDEV
1

Hi -
Is there a means of alerting an upper-level driver in the device stack to
interrupts/events occurring at a lower level? The upper level in this case
is a communications channel driver (with 2-32 device instance) that needs to
function with lower devices on more than one type of bus - one PCI & the
other network-attached.

thanks!
David Bradsher
xxxxx@comtrol.com

2

Pass an IRP to the lower driver, assuming you control both drivers, with a
registered completion routine. when the lower driver completes the IRP, the
upper level drivers completion routine will be called.

Trickier is to use a shared event.

–
The personal opinion of
Gary G. Little

“David Bradsher” wrote in message
news:xxxxx@ntdev…
> Hi -
> Is there a means of alerting an upper-level driver in the device stack to
> interrupts/events occurring at a lower level? The upper level in this
> case
> is a communications channel driver (with 2-32 device instance) that needs
> to
> function with lower devices on more than one type of bus - one PCI & the
> other network-attached.
>
> thanks!
> David Bradsher
> xxxxx@comtrol.com
>
>
>