/* This is necessary when dynamically changing SAIP configuration. */ int sacom_detach(struct device *self, int flags) { struct sacom_softc *sc = (struct sacom_softc *)self; int maj, mn; /* locate the major number */ maj = cdevsw_lookup_major(&sacom_cdevsw); /* Nuke the vnodes for any open instances. */ mn = device_unit(self); vdevgone(maj, mn, mn, VCHR); mn |= COMDIALOUT_MASK; vdevgone(maj, mn, mn, VCHR); /* Free the receive buffer. */ free(sc->sc_rbuf, M_DEVBUF); /* Detach and free the tty. */ tty_detach(sc->sc_tty); ttyfree(sc->sc_tty); /* Unhook the soft interrupt handler. */ softint_disestablish(sc->sc_si); #if NRND > 0 && defined(RND_COM) /* Unhook the entropy source. */ rnd_detach_source(&sc->rnd_source); #endif return 0; }
int ucom_detach(device_t self, int flags) { struct ucom_softc *sc = device_private(self); struct tty *tp = sc->sc_tty; int maj, mn; int s, i; DPRINTF(("ucom_detach: sc=%p flags=%d tp=%p, pipe=%d,%d\n", sc, flags, tp, sc->sc_bulkin_no, sc->sc_bulkout_no)); sc->sc_dying = 1; pmf_device_deregister(self); if (sc->sc_bulkin_pipe != NULL) usbd_abort_pipe(sc->sc_bulkin_pipe); if (sc->sc_bulkout_pipe != NULL) usbd_abort_pipe(sc->sc_bulkout_pipe); s = splusb(); if (--sc->sc_refcnt >= 0) { /* Wake up anyone waiting */ if (tp != NULL) { mutex_spin_enter(&tty_lock); CLR(tp->t_state, TS_CARR_ON); CLR(tp->t_cflag, CLOCAL | MDMBUF); ttyflush(tp, FREAD|FWRITE); mutex_spin_exit(&tty_lock); } /* Wait for processes to go away. */ usb_detach_waitold(sc->sc_dev); } softint_disestablish(sc->sc_si); splx(s); /* locate the major number */ maj = cdevsw_lookup_major(&ucom_cdevsw); /* Nuke the vnodes for any open instances. */ mn = device_unit(self); DPRINTF(("ucom_detach: maj=%d mn=%d\n", maj, mn)); vdevgone(maj, mn, mn, VCHR); vdevgone(maj, mn | UCOMDIALOUT_MASK, mn | UCOMDIALOUT_MASK, VCHR); vdevgone(maj, mn | UCOMCALLUNIT_MASK, mn | UCOMCALLUNIT_MASK, VCHR); /* Detach and free the tty. */ if (tp != NULL) { tty_detach(tp); tty_free(tp); sc->sc_tty = NULL; } for (i = 0; i < UCOM_IN_BUFFS; i++) { if (sc->sc_ibuff[i].ub_xfer != NULL) usbd_free_xfer(sc->sc_ibuff[i].ub_xfer); } for (i = 0; i < UCOM_OUT_BUFFS; i++) { if (sc->sc_obuff[i].ub_xfer != NULL) usbd_free_xfer(sc->sc_obuff[i].ub_xfer); } /* Detach the random source */ rnd_detach_source(&sc->sc_rndsource); return (0); }