ttysleep
error = ttysleep(tp, TSA_CARR_ON(tp), PCATCH, "nmdopn", 0);
error = ttysleep(tp, TSA_OCOMPLETE(tp),
ttysleep(tp, TSA_OCOMPLETE(tp), 0,
error = ttysleep(tp, &lbolt, PCATCH, "ttybg2", 0);
error = ttysleep(tp, TSA_HUP_OR_INPUT(tp), PCATCH,
error = ttysleep(tp, &lbolt, PCATCH,
error = ttysleep(tp, TSA_CARR_ON(tp), PCATCH, "ttydcd", 0);
error = ttysleep(tp, &lbolt, PCATCH, "ttybg4", 0);
error = ttysleep(tp, &lbolt,
error = ttysleep(tp, &lbolt, PCATCH,
error = ttysleep(tp, TSA_OLOWAT(tp), PCATCH, "ttywri", tp->t_timeout);
error = ttysleep(tp, &lbolt, PCATCH, "ttybg1",
error = ttysleep(tp, TSA_CARR_ON(tp), PCATCH, "ptsopn", 0);
error = ttysleep(tp, &lbolt, PCATCH, "ptsbg", 0);
error = ttysleep(tp, TSA_PTS_READ(tp), PCATCH,
int ttysleep (struct tty *tp, void *chan, int slpflags, char *wmesg,