Hello Peter, We where already afraid that it might be a bug in the firmware. The device is working without problems with windows, but I suspect that windows is initializing the device only once. Thanx for the pointer to the libusb list. I will check the thread.
Kind regards, Johan Uiterwijk Winkel. Peter Stuge wrote: > Johan Uiterwijk Winkel wrote: > >> When the test programm is run for the second time most of the time >> we are unable to connect to the device. >> > > This is almost exclusively caused by a bug in device firmware. > > > >> Resetting the USB device using libusb also does not solve the >> problem. >> > > It is not possible to reset a USB device from software. The closest > you can come is to manipulate the hub which the device is connected > to and make it tepmorarily remove power from the right port, but > there is no API for doing this. > > > IIRC the thread on the libusb list ended with the discovery that the > device firmware could not handle a configuration request when it was > already configured, but please do check the archive. I believe it was > discussed in the last three or four months. > > > //Peter > > _______________________________________________ > libhid-discuss mailing list > [email protected] > http://lists.alioth.debian.org/mailman/listinfo/libhid-discuss > http://libhid.alioth.debian.org/ > > _______________________________________________ libhid-discuss mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/libhid-discuss http://libhid.alioth.debian.org/
