Re: Sample HID Client App for WinCE 4.2
- From: DianaT <DianaT@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 13 Oct 2005 08:00:07 -0700
Thank you so much for your response. I am using a PocketPC model that has USB
host support. I have emailed the author of the HID mouse driver you refered
to, so hopefully he will shed some light on this.
If I understand your reply correclty, you are saying that CE doesn't yet
support HID clients like BIG windows does because there are so few devices
out there that need it? That would be a real shame.
If anyone else has seen any examples of HID client applications for CE I
would really
appreciate a link.
Thanks again,
Diana
"xTenn" wrote:
>
> "DianaT" <DianaT@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:A518833A-EEDC-4078-9AA2-68D7B2748DB7@xxxxxxxxxxxxxxxx
> > Hello all,
> > I am trying to write a very simple windows CE application that will open
> > our
> > custom HID compliant USB device and parse the data in the report. I am
> > having
> > trouble finding a simple example. Everyone says how easy it is to read HID
> > devices without writing a driver or anything, but I can't find any such
> > examples for windows CE. The API used in BIG windows doesn't exist fully
> > in
> > the CE version so those example are not help. I have installed Platform
> > Builder and looked at the examples provided with that, but those also seem
> > to
> > be requiring a custom driver to be written.
> >
> > What am I missing? Do I have to write a driver? If not, where can find an
> > example of a simple "generic" HID client? I would really appreciate any
> > help
> > on this matter because I have been investigating this for a long time now
> > with little luck.
> >
> > Thanks in advance,
> > DianaT
>
> The problem in all likelyhood will be a hardware issue, sorry to say. Only
> very few PPCs have USB host capabilities, so a custom driver written for the
> PPC platform would not have anything to communicate with, as it were.
>
> The option is to get the hardware to attach to the unit (look at
> www.ratocsystems.com), but then they have drivers developed for use. The
> interface is a bit pricey, so it will not be a viable alternative in all
> cases. On top of that it is rather clumsy to carry about AND if you plan on
> using it to interface hard drive a different power supply will be required
> for the drive.
>
> For those devices that do have USB hosting capabilities you might want to go
> here for further research (http://www.deje.gmxhome.de/download.html). This
> site has a PPC HID driver (mouse in this case) for just such devices, but
> some information *might* be forthcoming with a request.
>
> Good luck.
>
>
>
>
.
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