Hello, sorry for my english but im italian.. i try to develop a libfprint driver for upek TCS5D fingerprint reader/coprocessor that is installed in my lenovo thinkpad T430. I discover that if i change the vendor/product id of UPEK TouchStrip driver (upekts.c) the reader is recognized by library but doesnt read. So i have sniffed usb packets among proprietary library under windows and the device and i found initialization sequences. I have tryed to substitute my initialization sequences in the driver, and i added two new state in the list of finite state machine but, when i have defined a new read state i have recieved an error from libusb: the host sent a request of data to device but device replied with a EIOERROR (-121). I have compared the sniffed packets onto linux and windows and there are identical (the only different is the lenght of request bulk data from host to device, in driver it is smaller than in the proprietary library). Please can you help me? i dont know if it is a bug in modified driver version, hardware failure (i have a usb3 controller...but under windows XP the device works correctly) or other...
Thank you Andrea _______________________________________________ fprint mailing list fprint@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/fprint
