driver stack for webcam

I hav logitech webcam installed in my pc.It works fine.In DriverView I can see thr r 2 drivers running from Logitech. One USB statics driver & other Video deiver.

Now I want see driver stack for logitech wbcam driver. I installed DevFilter 2.2 but with no avail. In devfilter it only shows USB statics driver in object tree but not webcam driver

What can I do to see driver stack for logitech web cam installed in my pc


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