libusb_get_configuration(dev, ¤t_configuration);
if (current_configuration != 1)
libusb_set_configuration(dev, 1);
libusb_claim_interface(dev, 0);
libusb_get_configuration(dev, ¤t_configuration);
if (current_configuration != 1)
libusb_set_configuration(dev, 1);
libusb_claim_interface(dev, 0);