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From: alberto on 21 Oct 2009 13:15

Can't you just rename the Windows USB drivers ? As long as you have a
PS/2 keyboard and mouse, and no other USB peripheral in your machine,
you don't need USB for anything else but for your own peripheral. The
Windows USB driver stack would be effectively decomissioned, and you
can do whatever you can with whatever USB peripheral you may want to
use without Windows even knowing it's there.

Or you can try writing a legacy driver that has a DriverEntry and
nothing else. As long as you have access to the hardware, you can do
whatever you want to the bus. Agreed, it wouldn't be a well behaved
driver, but that's not what you need, right ? Or do I misunderstand
your need ?

Alberto.



On Sep 25, 11:41 am, eric selk <eselk2...(a)gmail.com> wrote:
> I'm in search of a cheap and easily available (I need to start with
> small quantities) USB device.  Pretty much anything small that can be
> plugged in to a USB port.  I want something that will cause Windows to
> give the least amount of feedback possible when plugged in, not
> something that Windows might try to autoplay, and for sure not
> something that Windows will ask the user to install a driver for.
>
> The purpose would be for my software which is already installed and
> running on the PC to query the device for the unique serial number.  I
> don't need to use the device for anything else, just the serial
> number.
>
> I have another program that uses flash drives for this, and I can
> query the serial number fine (serial number and product name/vendor
> name set by the OEM).  For that product we like the autoplay/autorun
> features because we use that for our software install, and then we
> unmount the volume so that it doesn't autorun in the future.  For this
> product we will have nothing on the device, and will only be using the
> serial number.  I know I could cancel the autoplay (although I'm not
> sure how I could cancel just for our device and not other flash drives
> the user may have), and after the first time I can unmount the volume
> that Windows assigns so that it doesn't autoplay in the future... but
> ideally this device would never autoplay (without me breaking other
> USB autoplay), and wouldn't show up as a drive or even have any
> storage space on it (would think it would be cheaper).
>
> I've seen various "dongles" and "smart card" devices that people are
> selling for copy protection, but they are a combined software and
> hardware solution, or are more expensive than plain flash drives, and
> we aren't using this for copy protection or login/security.  It
> doesn't need to be "secure", I can't really say exactly what our idea
> is, but it isn't anything related to security or copy protection.
>
> We currently pay about $5 each for the flash drives, so anything in
> that range or cheaper would work, especially if the user experience
> was better (no autoplay).  I think a HID device would be ideal, but it
> needs to be small/generic, not something like an actual mouse or
> keyboard... something that looks like a flash drive would be ideal.

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