if (libusb_kernel_driver_active(devc->usb->devhdl, 0) == 1) {
ret = libusb_detach_kernel_driver(devc->usb->devhdl, 0);
if (ret < 0) {
if (libusb_kernel_driver_active(devc->usb->devhdl, 0) == 1) {
ret = libusb_detach_kernel_driver(devc->usb->devhdl, 0);
if (ret < 0) {