StartDevice problem

NTDEV
1

Hi.

I have a lower filter of functional driver. On IRP_MN_QUERY_DEVICE_RELATION
I attach my filter to child object using IoCreateDevice and
IoAtachDeviceToDeviceStack. Then I’d like to receive IRP_MN_START_DEVICE but
nothing happens, I don’t receive this PnP. What could be the reason?

Thanx in advance.

2

Are you modifying the status in the irp? Are you returning the same
status that was previously in the irp from your pnp dispatch routine?

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Dmitry Gubarkov
Sent: Friday, February 04, 2005 5:49 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] StartDevice problem

Hi.

I have a lower filter of functional driver. On
IRP_MN_QUERY_DEVICE_RELATION
I attach my filter to child object using IoCreateDevice and
IoAtachDeviceToDeviceStack. Then I’d like to receive IRP_MN_START_DEVICE
but
nothing happens, I don’t receive this PnP. What could be the reason?

Thanx in advance.

Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

You are currently subscribed to ntdev as: xxxxx@windows.microsoft.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

3

Frankly, I don’t change any staus now,just pass down as is. And that’s all.

“Doron Holan” wrote in message
news:xxxxx@ntdev…
Are you modifying the status in the irp? Are you returning the same
status that was previously in the irp from your pnp dispatch routine?

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Dmitry Gubarkov
Sent: Friday, February 04, 2005 5:49 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] StartDevice problem

Hi.

I have a lower filter of functional driver. On
IRP_MN_QUERY_DEVICE_RELATION
I attach my filter to child object using IoCreateDevice and
IoAtachDeviceToDeviceStack. Then I’d like to receive IRP_MN_START_DEVICE
but
nothing happens, I don’t receive this PnP. What could be the reason?

Thanx in advance.

—
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

You are currently subscribed to ntdev as: xxxxx@windows.microsoft.com
To unsubscribe send a blank email to xxxxx@lists.osr.com