One can always queue an workitem to get around of elevated IRQL.
Bi
-----Original Message-----
From: Gary G. Little [mailto:xxxxx@inland.net]
Sent: Wednesday, November 13, 2002 9:29 PM
To: NT Developers Interest List
Subject: [ntdev] Re: Sharing a Event betwenn Scsi Miniport and User mo de
application
And the specific problem with SCSI miniport serialization is that you are at
DISPATCH_LEVEL and DIRQL MUCH of the time and cannot even find out since the
call to get the IRQL is in the DDK and NOT in the SCSIPORT driver. Unless
you call IoCreateNotificationEvent in DriverEntry, you most likely are NOT
at PASSIVE_LEVEL, and therefore screwed.
The answer is still … “No, a SCSI miniport may NOT call
IoCreateNotification and maintain compliance with the SCSIPORT model and
WHQL.” If WHQL is NOT a consideration for the driver, then the driver writer
can do what the driver wants to do if the driver writer can do what the
driver writer wants to do.
(See Peter W? I do not always color outside the box. :))
–
Gary G. Little
Have Computer, Will Travel …
909-698-3191
909-551-2105
“Bi Chen” < xxxxx@AppStream.com mailto:xxxxx > wrote in
message news:xxxxx@ntdev news:xxxxx …
One easy way to deal with this inconvenient is to copy those prototypes from
ntddk.h or wdm.h you need but is not included in the miniport header file
and paste them into your private header. I would add, for example
#ifndef IoCreateNotificationEvent
// all the things need to be defined for this prototype
#endif
It works like charm. Beware what you are doing, mostly if you are at right
IRQL to call those functions
Bi
-----Original Message-----
From: Gary G. Little [mailto:xxxxx@inland.net]
Sent: Wednesday, November 13, 2002 3:31 PM
To: NT Developers Interest List
Subject: [ntdev] Re: Sharing a Event betwenn Scsi Miniport and User mode
application
No. A SCSI miniport is not compiled with the DDK but with the SCSIPORT
headers. As such it does not have the DDK Io, Ke, Mm, Rtl, etc available to
it.
–
Gary G. Little
Have Computer, Will Travel …
909-698-3191
909-551-2105
“Saxena, Ajitabh Prakash” < xxxxx@lsil.com mailto:xxxxx >
wrote in message news:xxxxx@ntdev news:xxxxx …
Is this possible for SCSI Miniport to Call IoCreateNotificationEvent because
as far as i am aware of DDK does not say this.
-----Original Message-----
From: subodh gupta [mailto:xxxxx@softhome.net]
Sent: Tuesday, November 12, 2002 10:38 PM
To: NT Developers Interest List
Subject: [ntdev] Re: Sharing a Event betwenn Scsi Miniport and User mode
application
use IoCreateNotificationEvent in the kernel mode driver and OpenEvent in
User Mode application.
–Subodh
----- Original Message -----
From: Saxena, mailto:xxxxx Ajitabh Prakash
To: NT mailto:xxxxx Developers Interest List
Sent: Monday, November 11, 2002 8:01 AM
Subject: [ntdev] Sharing a Event betwenn Scsi Miniport and User mode
application
hi all,
I need a user application to be Notified of event that happens in
Miniport Driver. Can i share a event between SCSI Miniport driver and User
mode application… if yes please give me pointers to Info on this.
thanks in advance.
ajitabh
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