Problem with CyberKnex Programmer program and direct LPT1 port access

Rob Shearman rob at
Fri Apr 8 09:40:50 CDT 2005

Terry Barnaby wrote:

> Hi,
> I am trying to get the K'nex CyberKnex Programmer Windows program
> working under wine on Fedora 3. It appears to be generally working but
> this program needs direct access to the LPT1 parallel port to drive an
> external "flash key" programmer.
> I have tried setting the "Windows" parameter to "winxp" and setting
> "export WINEDEBUG=+io,+int,+vxd;". This still does not
> work I get the error messages:
> fixme:setupapi:SetupDiClassGuidsFromNameExA
> trace:vxd:DeviceIoControl 
> (0xffffffff,222074,0x7e8e00b4,4,(nil),0,0x72c9f57c,(nil))
> I understand, from reading mailing lists and looking at the program, 
> that the
> program is using a DLL which has the capability of loading an embedded 
> driver to access the LPT1 port.
> Some questions:
> 1. Should this VXD driver loaded when the window system is set to 
> "winxp" ?

No. NT doesn't support VXDs, just like we don't (although we fake a few).

> 2. Is there any way I can get this program to communicate with the 
> LPT1 port ?

Possibly. I'd look at working at which IOCTL and see if you can handle 
it either by translating it into a Linux ioctl (preferable) or by faking 
the information returned to satisfy the program. It doesn't look as 
though the setupapi call is important as the program seems to carry on 
without it.


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