CLOCKCTL_NTP_ADJTIME
error = ioctl(__clockctl_fd, CLOCKCTL_NTP_ADJTIME, &args);
error = (cd->d_ioctl)(dev, CLOCKCTL_NTP_ADJTIME,
size = IOCPARM_LEN(CLOCKCTL_NTP_ADJTIME);
CLOCKCTL_NTP_ADJTIME);
CLOCKCTL_NTP_ADJTIME);
case CLOCKCTL_NTP_ADJTIME: {