Re: [Libusb-win32-devel] disabling usb device

[Dan M. <dan...@gm...>]

Hi there,

Thank you all for the answers and, once again, thank you Stephan. Setting
the interface to configuration zero worked just fine. Thanks.

Cheers!

Dan


On 4/15/07, Stephan Meyer <ste...@we...> wrote:
>
>
> Just use usb_set_configuration(dev, 0) to "turn off" the device
> after you're done with your testing. This will free the bandwidth
> allocated for the device.
>
> Stephan
>
>
> > Thank you Spiro and Graeme for the answers. Graeme's suggestion won't
> work for me, I should've explained the problem better. I might have had some
> luck with Spiro's answer though. I'll check if it'll work. Meanwhile, here
> goes a better explanation of the problem:
> >
> >
> >
> > I'm developing a test program that tests if usb ports are working. I do
> this by requesting information and writing and reading data from usb
> devices. I use an usb board test that has four devices. The thing is that
> these devices are out of usb standarts, requiring more bandwidth than it
> should. So, when I use a higher number of devices, Windows won't allow me to
> access from the third device and on. This happens because I don't have
> enough band.
> >
> > If I test one device, and after it's done, I unplug it, then I'm freeing
> some band, which allows me to test some more ports. If I do this to every
> device I test, then I'll be able to test how many ports I want.
> >
> > But it's not possible for me to be unpluging the devices myself - I need
> to do this by software. After I test one device, I should use a function (on
> Windows) that disables the device connection to the host controller, which
> will free some band.
> >
> >
> > I hope this made things clear.
> >
> > Cheers,
> >
> > Dan.
> >
> >
> >
> > On 4/13/07, Spiro Trikaliotis <an-...@sp...>
> wrote:
> > Hello,
> >
> > * On Thu, Apr 12, 2007 at 05:57:16PM -0300 Dan Martins wrote:
> >
> > > Does anyone know any windows function that allows me to manually
> >
> > > "unplug" a usb device?
> >
> > Have a look at the Windows DDK (now called "WDK"), the "devcon" sample.
> > It allows you to do different operations with devices, for example,
> > enable, disable, remove, list them, rescan for them, ...
> >
> >
> > HTH,
> >   Spiro.
> >
> > --
> > Spiro R. Trikaliotis                              http://opencbm.sf.net/
> > http://www.trikaliotis.net/                     http://www.viceteam.org/
> >
> >
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