Hello,

Is it possible in UMDF to access buffers passed with the
neither-method?
If so, how do I do it?
Where do I find information or sample code about this particular point?

Thanks,
Nir

it can, but not by default. there is a registry key in your devnode that
can enable it. you should reconsider your design and not use
METHOD_NEITHER. Whatever performance gains you think you are getting, you
are not...

d

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<nir1408@gmail.com> wrote in message
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Hello Doron,

I am interested in writing a general UDMF filter driver for USB
webcams.
Currently kernel webcam drivers use METHOD_NEITHER to return video
frames, so it is not my choice.

Where can I find more information on this subject?

Thanks,
Nir


Doron Holan [MS] wrote:

if the method_neither buffer has embedded pointers, this will not work. to
enable method_neither i/o, see this INF documentaiton page,
http://msdn2.microsoft.com/en-gb/library/aa510978.aspx. I don't know if a
UMDF filter driver of a KS device will work or not, it was not a tested
scenario

d

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<nir1408@gmail.com> wrote in message
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