STA_PPSWANDER
if (val & STA_PPSWANDER)
time_status &= ~(STA_PPSJITTER | STA_PPSWANDER | STA_PPSERROR);
time_status |= STA_PPSWANDER;
STA_PPSWANDER | STA_PPSERROR);
#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
time_status & (STA_PPSWANDER | STA_PPSERROR))) {
time_status & (STA_PPSWANDER | STA_PPSERROR)))