Thank you for your input...
In my case, it is always a one-to-one match; all USB devices have only
one partition formatted as FAT32.
What is the API solution you were referring to? I might have to use
ioctls for another purpose...
On Mon, 2012-11-12 at 10:21 -0800, Tim Roberts wrote:
> therau2000 wrote:
>
> >
> >
> > Several USB devices [all with different vendor/product-id, all
> > removable drives with different Volume names, all formatted FAT32]
> > are already connected when program starts. Windows does NOT display
> > Volume names; it displays only "removable drive" and the Drive
> > letter for each of them.
> >
> > I can easily list all USB devices and all Drive letters, BUT...
> >
> > How can I associate each USB device to its proper removable Drive
> > letter?
> > i.e.: device 1234:abcd ==> is really Drive letter F:
>
>
> Xiaofan's link is the right place to start, but I want to warn you
> that this is a much more difficult task than you might suspect.
> Remember that the mapping of drive letters to volumes is not 1-to-1 --
> a single removable drive can host multiple volumes, and a single
> volume can span multiple drives.
>
> The WMI solution is the easiest. There is an API solution, but it
> involves opening the raw devices, sending ioctls to query their
> partition IDs, and then matching up the partition IDs.
>
> --
> Tim Roberts, t...@probo.com
> Providenza & Boekelheide, Inc.
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