[fpc-pascal] SNAPI Driver and USB HID

Johann Glaser Johann.Glaser at gmx.at
Tue Sep 7 00:01:56 CEST 2010

Hi Henry!

Am Montag, den 06.09.2010, 22:44 +0100 schrieb Henry Vermaak:
> On 6 September 2010 18:07, Johann Glaser <Johann.Glaser at gmx.at> wrote:
> > Hi!
> >
> > I've bought a barcode scanner (Symbol MS4407) with an USB interface and
> > want to use that with Linux. Unfortunately Motorola (who bought Symbol a
> > few years ago) do not provide Linux drivers and also do not provide USB
> > protocol documentation, even after some pushy support questions.
> >
> > For Windows they provide a SNAPI DLL plus a .h file. Does anybody know a
> > Linux version of the SNAPI driver, preferably written in FreePascal?
> >
> > As I'm not very confident that such a driver does exist, I've also
> > evaluated the USB descriptors and such stuff. The scanner offers an USB
> > HID class interface. Some search in this mailing list archives reveals,
> > that Jonas pointed to a freelance job to provide some USB HID reader on
> > 2009-07-21 and 2009-09-16. Are there any (freely) available results from
> > these jobs? Does anybody else have information on how to use the
> > Linux /dev/hid... stuff with Pascal? Or how to work with the USB HID
> > descriptor stuff?
> I know about libhid, maybe that helps?

Thanks for the hint. I must have overlooked this in my previous


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