Video Class

Hi,

I am fairly new to Device Drivers and not sure where to start. We have an
imaging board connected to a FX2 board that streams vidoe and we can capture
images. The CYUSB driver shipped with this board is a USB Generic driver for
the board, so we are unable to use it with Direct X to handle the video
streaming.

From what i can see to ensure that our device to stream video with DirectX,
we have to implement the Video Class and an Upper and Lower Filter. I am not
sure were to start implementing this Video Class. Is the Video class
available for download? Are there any upper and lower filter class available?

Many Thanks,
Bruce Philp
--
Bruce Philp
Software Engineer
Astron Clinica Ltd

Tim
Sat Sep 10 00:16:03 CDT 2005

"Bruce" <bruce.philp@astronclinica.com> wrote:
>
>I am fairly new to Device Drivers and not sure where to start. We have an
>imaging board connected to a FX2 board that streams vidoe and we can capture
>images. The CYUSB driver shipped with this board is a USB Generic driver for
>the board, so we are unable to use it with Direct X to handle the video
>streaming.
>
>From what i can see to ensure that our device to stream video with DirectX,
>we have to implement the Video Class and an Upper and Lower Filter. I am not
>sure were to start implementing this Video Class. Is the Video class
>available for download? Are there any upper and lower filter class available?

There is a standard Microsoft driver that can fully handle any device that
conforms to the USB video spec. As long as you can write the firmware and
the USB descriptors to match USB video class, you don't have to write any
drivers at all (although you'll still need a way to load the FX2 firmware).

Have you carefully read the video class spec?
--
- Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.

bruce
Tue Sep 13 01:50:02 CDT 2005

Hi Tim,

Many thanks for your help. I seem to be on the right path and things are a
lot clearer.

Cheers,
Bruce
--
Bruce Philp
Software Engineer
Astron Clinica Ltd


"Tim Roberts" wrote:

> "Bruce" <bruce.philp@astronclinica.com> wrote:
> >
> >I am fairly new to Device Drivers and not sure where to start. We have an
> >imaging board connected to a FX2 board that streams vidoe and we can capture
> >images. The CYUSB driver shipped with this board is a USB Generic driver for
> >the board, so we are unable to use it with Direct X to handle the video
> >streaming.
> >
> >From what i can see to ensure that our device to stream video with DirectX,
> >we have to implement the Video Class and an Upper and Lower Filter. I am not
> >sure were to start implementing this Video Class. Is the Video class
> >available for download? Are there any upper and lower filter class available?
>
> There is a standard Microsoft driver that can fully handle any device that
> conforms to the USB video spec. As long as you can write the firmware and
> the USB descriptors to match USB video class, you don't have to write any
> drivers at all (although you'll still need a way to load the FX2 firmware).
>
> Have you carefully read the video class spec?
> --
> - Tim Roberts, timr@probo.com
> Providenza & Boekelheide, Inc.
>