windows port access

[BRYAN BRANNIGAN]

Thanks for the responses,

This card is going to send small voltages to relays to control motors and is
the only way I have found to accomplish this task.  The address on the card
is flexible.

Bryan
"Chris Gonnerman" <chris.gonnerman at newcenturycomputers.net> wrote in message
news:mailman.995346569.21423.python-list at python.org...
> ----- Original Message -----
> From: "Peter Hansen" <peter at engcorp.com>
>
>
> > Chris Gonnerman wrote:
> > >
> > > Unfortunately what Bryan is asking is not what you are answering.  He
> wants
> > > to access the I/O port 0x280, which he states is assigned to a "custom
> ISA
> > > card" which (I assume) is not using the standard parallel port
> interface,
> > > nor serial, etc. and for which he evidently has no driver.
> >
> > I admit I didn't actually look at the winioport stuff proposed in the
> > "parallel port?!?" thread, but given that it was called winioport
> > and not winparallelport, I assumed it was a way of providing generic
> > access to IO ports under Windows.  If I was wrong, then you are right
> > to correct me!  (Do you know winioport would not work or were you just
> > tricked by the name of the thread?)
>
> Whups.  Evidently the low-level package in use by winioport DOES support
> generic
> access.  My mistake... I was going by the commentary on the main winioport
> page,
> where he says "I am now able do printer port IO."  I assumed that was the
> entire
> scope of the package, but evidently not.
>
> > Of course, it's probably moot given Jon Nicoll's response which suggests
> > a perfectly viable alternative.
>
> Indeed... to wit:
>
> ----- Original Message -----
> From: "Jon Nicoll" <jkn at nicorp.f9.co.uk>
>
> > This is exactly what my code can be used for - you can set it up to
> > get access to arbitary IO ports (via the ioperm mechanism in Linux),
> > and then read or write etc. as you like. Admittedly, it doesn't
> > currently cater for interrupts.
>
> Which could be vitally significant or totally unimportant.
>
> > I originally started writing this to drive an ISA 8255/8253 card, and
> > although this project-ette is currently in limbo, the basics are all
> > there and working, if Bryan wants to do eg. polled access to an A/D
> > card etc.
> >
> > You don't need a VxD (for W95 at least), although it's probably the
> > 'better' way of doing things. My code is in C and turns into a little
> > '.PYD' (= .DLL) file. In NT, you need a kernel mode driver, which I
> > haven't yet got around to looking at.
>
> Here the winioport module (and the underlying DriverLYNX package) might
> be better for Bryan.
>
> > I've just resurrected my code and am looking at using distutils to get
> > it in a form more easily distributed. Email me if would be of use to
> > you in the meantime.
>
> Bryan hasn't responded since he initially requested this information...
> are you out there, Bryan?
>
>
>