2012/10/30 Stefano Di Martino <stefan...@gmx.net>:
> Hi,
> libusbx had indeed an issue, but now, it is fixed. I cant get without 
> problems an string descriptor from a HID device, but his works only in C. 
> With pyUSB I get the same error: "[Errno None] Overflow".
> Maybe pyUSB has a bug, too?
>
> This is the way how I retrieve the string descriptor:
>
>     def get_manufactorer_name(self):
>         if self.device.iManufacturer > 0:
>             string = usb.util.get_string(self.device, 254, 
> self.device.iManufacturer)
>             return string
>
>         return ""
>
> I can't post any debug messages, because I don't know how to activate them in 
> pyUSB. I tried this, but it doesn't work:
>
> os.environ['PYUSB_DEBUG_LEVEL'] = 'debug'
>

You should do that before importing PyUSB modules.

-- 
Best Regards,
Wander Lairson Costa

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