ttyldisc_attach
error = ttyldisc_attach(&bcsp_disc);
error = ttyldisc_attach(&bth5_disc);
error = ttyldisc_attach(&btuart_disc);
error = ttyldisc_attach(&hpf1275a_disc);
(void) ttyldisc_attach(&irframet_disc);
if (ttyldisc_attach(&sunkbd_disc) != 0)
if (ttyldisc_attach(&sunms_disc) != 0)
if (ttyldisc_attach(&termios_disc) != 0)
if (ttyldisc_attach(&ntty_disc) != 0)
if (ttyldisc_attach(&ppp_disc) != 0)
if (ttyldisc_attach(&slip_disc) != 0)
int ttyldisc_attach(struct linesw *);