Upper filter driver

Hello.

How I may add code to ISR of device driver from its upper
filter device driver?

Thanks.

Marian,

It's not absolutely impossible but it is highly impractical. The best way is
if you own the driver. Then you simply modify the ISR to behave the way you
want it to. If the ISR has callbacks you could use them, just remember you
will always be at DIRQL, and you are of course dependent on when and if the
ISR calls it's callbacks.

What are you trying to do? Someone may know a better way.

--
Gary G. Little
Seagate Technologies, LLC
gary.g.little@seagate.com

Hello.

How I may add code to ISR of device driver from its upper
filter device driver?

Thanks.

Marian,

It's not absolutely impossible but it is highly impractical. The best way is
if you own the driver. Then you simply modify the ISR to behave the way you
want it to. If the ISR has callbacks you could use them, just remember you
will always be at DIRQL, and you are of course dependent on when and if the
ISR calls it's callbacks.

What are you trying to do? Someone may know a better way.

--
Gary G. Little
Seagate Technologies, LLC
gary.g.little@seagate.com

the ps2 keyboard stack has the ability to do this, but that is very specific
to that particular driver (i8042prt). there is no generic mechanism to
achieve this.

--
This posting is provided "AS IS" with no warranties, and confers no rights.

the ps2 keyboard stack has the ability to do this, but that is very specific
to that particular driver (i8042prt). there is no generic mechanism to
achieve this.

--
This posting is provided "AS IS" with no warranties, and confers no rights.

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1 29th May 21:14 marian External User Posts: 1	Upper filter driver Hello. How I may add code to ISR of device driver from its upper filter device driver? Thanks.

3 29th May 21:15 marian External User Posts: 1	Upper filter driver Hello. How I may add code to ISR of device driver from its upper filter device driver? Thanks.

5 29th May 21:15 doron holan [ms] External User Posts: 1	Upper filter driver the ps2 keyboard stack has the ability to do this, but that is very specific to that particular driver (i8042prt). there is no generic mechanism to achieve this. -- This posting is provided "AS IS" with no warranties, and confers no rights.

6 29th May 21:16 doron holan [ms] External User Posts: 1	Upper filter driver the ps2 keyboard stack has the ability to do this, but that is very specific to that particular driver (i8042prt). there is no generic mechanism to achieve this. -- This posting is provided "AS IS" with no warranties, and confers no rights.