if ((r != 1) || status[0] != USBTMC_STATUS_SUCCESS) {
printf("INITIATE_CLEAR failed (0x%x): %s\n", status[0], usb_strerror());
if ((r != 1) || status[0] != USBTMC_STATUS_SUCCESS) {
printf("INITIATE_CLEAR failed (0x%x): %s\n", status[0], usb_strerror());