Symbol: SCGETC_NONBLOCK
sys/dev/syscons/syscons.c
2123
c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK, sp);
sys/dev/syscons/syscons.c
3778
c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
sys/dev/syscons/syscons.c
845
while ((c = scgetc(sc, SCGETC_NONBLOCK, NULL)) != NOKEY) {