From: Eliyas Yakub [eliyasy@microsoft.com]
Sent: Thursday, September 21, 2000 12:44 PM
To: NT Developers Interest List
Subject: [ntdev] Re: ntdev digest: September 19, 2000

http://support.microsoft.com/support/kb/articles/q117/3/08.asp

http://support.microsoft.com/support/kb/articles/q228/7/85.asp

http://support.microsoft.com/support/kb/articles/Q176/4/15.ASP


-----Original Message-----
From: Michael Uman [mailto:michael_uman@sonic.com]
Sent: Wednesday, September 20, 2000 5:04 PM
To: NT Developers Interest List
Subject: [ntdev] Re: ntdev digest: September 19, 2000


Hello,

Could someone please point me to a good example of signalling a user-level
application that an event {such as an interrupt} was recieved? We have
considered that a semaphore object should be used. Who should create the
Semaphore object {The driver of the user-level app}? If someone knows of an
example of this technique it could save me a bit of time...

For instance, I have an interrupt handler installed in the driver. The
driver ISR should be dispatched when an interrupt arrives, I read registers
on the board and determine it is our interrupt, now I want to release the
semaphore so all processess waiting for it will un-block. The idea is that
we have a high-priority process running in user-mode land who would then
inquire through an IOCTL what caused the interrupt and dispatch the
high-level code to handle it.

Please reply either to the list and to my EMail address....
mailto:michael_uman@sonic.com

Thank you,
Michael Uman
Sr. Software Engineer
Sonic Solutions



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