ppbus_io
return (bus->ppbus_io(device_parent(dev), iop, addr, cnt, byte));
int ppbus_io(device_t, int, u_char *, int, u_char);
ppbus->ppbus_io = sc_link->parport_io;
PARPORT_IO_T ppbus_io;
u_char port = ppbus_io(sc->sc_dev, ppbus_port[pin].rreg, NULL, 0, 0);
u_char port = ppbus_io(sc->sc_dev, ppbus_port[pin].rreg, NULL, 0, 0);
ppbus_io(sc->sc_dev, ppbus_port[pin].wreg, NULL, 0, port);
ppbus_io((dev), PPBUS_WFIFO, NULL, 0, (byte))
ppbus_io((dev), PPBUS_RDTR, NULL, 0, 0)
ppbus_io((dev), PPBUS_RSTR, NULL, 0, 0)
ppbus_io((dev), PPBUS_RCTR, NULL, 0, 0)
ppbus_io((dev), PPBUS_WDTR, NULL, 0, (byte))
ppbus_io((dev), PPBUS_WSTR, NULL, 0, (byte))
ppbus_io((dev), PPBUS_WCTR, NULL, 0, (byte))
ppbus_io((dev), PPBUS_OUTSB_EPP, (buf), (cnt), 0)
ppbus_io((dev), PPBUS_OUTSW_EPP, (buf), (cnt), 0)
ppbus_io((dev), PPBUS_OUTSL_EPP, (buf), (cnt), 0)
ppbus_io((dev), PPBUS_INSB_EPP, (buf), (cnt), 0)
ppbus_io(( dev), PPBUS_INSW_EPP, (buf), (cnt), 0)
ppbus_io((dev), PPBUS_INSL_EPP, (buf), (cnt), 0))
ppbus_io((dev), PPBUS_REPP_A, NULL, 0, 0)
ppbus_io((dev), PPBUS_REPP_D, NULL, 0, 0)
ppbus_io((dev), PPBUS_RECR, NULL, 0, 0)
ppbus_io((dev), PPBUS_RFIFO, NULL, 0, 0)
ppbus_io((dev), PPBUS_WEPP_A, NULL, 0, (byte))
ppbus_io((dev), PPBUS_WEPP_D, NULL, 0, (byte))
ppbus_io((dev), PPBUS_WECR, NULL, 0, (byte))