Irp Blocking

NTDEV
1

I tried to block a keyboard IRPs using IRP PENDING and I end up jamming
the whole system. somebody told me that it is impossible to do, could
anybody tell me the reason for that?

Thanks in advance,

Udi Ovadia

2

Keyboard read irps are sent synchronously - you will get another one only if
you complete the one you pended. If you don’t, nobody up in the user land
will get any keyboard inputs.

-Eliyas

-----Original Message-----
From: Greenshtain Oren [mailto:xxxxx@techst02.technion.ac.il]
Sent: Monday, July 10, 2000 9:08 AM
To: NT Developers Interest List
Subject: [ntdev] Irp Blocking

I tried to block a keyboard IRPs using IRP PENDING and I end up jamming
the whole system. somebody told me that it is impossible to do, could
anybody tell me the reason for that?

Thanks in advance,

Udi Ovadia

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