Unfortunately the device has no serial number :(
Kind regards,
Budi
On Mon, Sep 8, 2014 at 9:59 PM, Wander Lairson Costa <
wander.lair...@gmail.com> wrote:
> 2014-09-07 22:40 GMT-03:00 Setia Budi <boedy.b...@gmail.com>:
> > Dear all,
> > I have further question regarding the use of multiple identical usb
> reader.
> >
> > For example I have two physical USB port on my computer, let's call them
> > usb1 and usb2.
> > Then I attach two identical usb device to them. Let's call them device1
> and
> > device2.
> >
> > Then I write this Python script
> > devices = tuple(usb.core.find(find_all=True, idVendor=0x1,
> idProduct=0x2))
> >
> > My question is, how to make sure that devices[0] is always refer to the
> usb
> > device which is connected to usb1 and device[1] is always refer to the
> usb
> > device attach to usb2.
> > I found that there is no consistency every time I call this function:
> > usb.core.find(find_all=True, idVendor=0x1, idProduct=0x2)
> >
> > Anyone could assist me? Thank you :)
> >
>
> If your device has a serial number, you can order the list using that
> as the key, so devices will always have the same order.
>
>
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