Well, my "solution" is nothing else than a deferment, that is, the problem still exists. It takes longer to show up, but is shows up!
Regards Stefano -------- Original-Nachricht -------- > Datum: Fri, 09 Nov 2012 09:00:27 +0100 > Von: "Stefano Di Martino" <stefan...@gmx.net> > An: pyusb-users@lists.sourceforge.net > Betreff: Re: [pyusb-users] Devices disconnects after several request > Well, the only thing I can say, is, that I use libusbx under the hood. > I've found a pretty clean solution for my problem. > > I just call once usb.core.find(find_all=True) every 2 second and look up > first for the usb hub und reuse the retrieved list, to find the usb devices > connected to the hub. In the past I called find() two times per intervall > in a very short time and when I called it the second time, an exception rose > after approximately 15 intervalls. > > Regards > Stefano > > -------- Original-Nachricht -------- > > Datum: Fri, 9 Nov 2012 09:42:48 +0800 > > Von: Xiaofan Chen <xiaof...@gmail.com> > > An: pyusb-users@lists.sourceforge.net > > Betreff: Re: [pyusb-users] Devices disconnects after several request > > > Yes I am here. :-) > > > > And yes you are correct. libusbx-1.0.13 and later (1.0.14 is the current > > release version) support libusb-win32 driver and libusbK driver through > > libusbK.dll. > > > > libusbx changelog: > > https://github.com/libusbx/libusbx/blob/master/ChangeLog > > > > The dependency to libusbK.dll will automatically be taken care > > of if the user use latest Zadig to install libusb-win32 driver > > or libusbK driver. > > > > BTW, if the OP is dealing with USB Hubs, then libusb-win32 > > driver can not be used as we have dropped the hub support > > due to problems associated with the filter driver. > > > > > > -- > > Xiaofan > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_nov > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
