Re: [Libusb-win32-devel] Help, please

[Xiaofan C. <xia...@gm...>]

On 6/7/07, Bertrik Sikken <be...@si...> wrote:
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> Stephan Meyer wrote:
> > Try to replace:
> >
> > uci = usb_claim_interface (udev, 0);
> >
> > with
> >
> > usb_set_configuation(udev, 1);
> > uci = usb_claim_interface (udev, 0);
> >
> > It should work then.
>
> I think I recently saw a recommendation on the libusb list to NOT
> do an explicit usb_set_configuration. If I remember correctly
> Linux already picks a configuration for you (usually devices
> only have one configuration anyway).

I believe that recommendation is wrong and for old version of Linux.
Under Linux, often it is necessary to detach the kernel driver
(eg: usbhid) before libusb can functional. This may have something to
do with problems happened when calling usb_set_configuration
under Linux.

> What is the proper thing to do when writing something for
> both Linux and Windows?
>

I believe what Stephan recommended is correct.