Bus filters can be tricky. The pre-Win8 WDK had a basic bus filter
sample under the toaster example.
Pete
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------ Original Message ------
From: xxxxx@gmail.com
To: “Windows File Systems Devs Interest List”
Sent: 8/27/2015 4:07:00 PM
Subject: RE:[ntfsd] Intercepting I/Os on CSV volumes
>Well that didn’t work.
>
>The csvvbus.sys driver installs itself with
>Class = System, and
>ClassGuid = {4d36e97d-e325-11ce-bfc1-08002be10318}
>but the AddDevice routine in my filter driver didn’t see any devices
>created by csvvbus.sys.
>In fact any of the devices that my AddDevice get called for didn’t have
>\Driver\csvvbus.sys in it’s DriverObject->DriverName.
>
>After doing some more research I learnt that there’s some special
>handling required while writing bus filter drivers.
>
>All I need to do is get my driver to load on top of the csvvbus driver.
>Could you share any hints…?
>
>I do have a few leads to follow.
>I’ll post here if any of them prove to be solid.
>
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