USB Devices monitoring using minifilter driver.

NTDEV
1

Hi,

I am developing a USB minifilter driver using WinDDK minifilter sample driver. And i am also able to monitor the USB devices. But my problem is I am able to monitor only one device at one time. Is it possible to monitor more than one USB devices at once using the sample driver, i.e can it be possible to monitor the usb devices(more than one) in real time.

Please help me on this issue.

Regards,
Rajendra

2

Well minifilter’s are file system filters so first you should be asking this
on NTFSD. But to answer your question of course you can monitor more than
one at a time, that is why there are volumes and instances in a minifilter.

Don Burn
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@gmail.com
Sent: Tuesday, November 05, 2013 8:16 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] USB Devices monitoring using minifilter driver.

Hi,

I am developing a USB minifilter driver using WinDDK minifilter sample
driver. And i am also able to monitor the USB devices. But my problem is I
am able to monitor only one device at one time. Is it possible to monitor
more than one USB devices at once using the sample driver, i.e can it be
possible to monitor the usb devices(more than one) in real time.

Please help me on this issue.

Regards,
Rajendra

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3

Hi Don,
Sorry i mistakenly posted this issue in this section. My question is where i will get technical documentation on this topic(about multiple instance/volumes).

Regards,
Rajendra

4

Look at FltRegisterFilter and be sure your volume/instance stuff is set u.

Don Burn
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@gmail.com
Sent: Tuesday, November 05, 2013 8:33 AM
To: Windows System Software Devs Interest List
Subject: RE:[ntdev] USB Devices monitoring using minifilter driver.

Hi Don,
Sorry i mistakenly posted this issue in this section. My question is
where i will get technical documentation on this topic(about multiple
instance/volumes).

Regards,
Rajendra

NTDEV is sponsored by OSR

Visit the list at: http://www.osronline.com/showlists.cfm?list=ntdev

OSR is HIRING!! See http://www.osr.com/careers

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer

5

Hi Don,
Sorry i am again posting again in this blog, as i need to fix this as soon as possible.
I have just one question, how can i attach more than one instance using FilterAttach() from user mode.

Rajendra