VNA_IOC_SET_PARAMS
if (ioctl(vfd, VNA_IOC_SET_PARAMS, &set_param) != 0) {
if (ioctl(vfd, VNA_IOC_SET_PARAMS, &set_param) == 0) {
if (ioctl(vfd, VNA_IOC_SET_PARAMS, &set_param) == 0) {
if (ioctl(vfd, VNA_IOC_SET_PARAMS, &set_param) == 0) {
case VNA_IOC_SET_PARAMS: