Function port_open

src/iofunc.c:229–375

* \brief Open a hamlib_port based on its rig port type * \param p rig port descriptor * \return status */

 * \return status
 */
int HAMLIB_API port_open(hamlib_port_t *p)
{
    int status;
    int want_state_delay = 0;

    p->fd = -1;
    init_sync_data_pipe(p);

    if (p->asyncio)
    {
        status = create_sync_data_pipe(p);

        if (status < 0)
        {
            return (status);
        }
    }

    switch (p->type.rig)
    {
    case RIG_PORT_SERIAL:
        status = serial_open(p);

        if (status < 0)
        {
#if defined(WIN32)
//            rig_debug(RIG_DEBUG_ERR, "%s: serial_open(%s) status=%d, err=%s\n", __func__,
//                      p->pathname, status, rigerror(status));
#else
            rig_debug(RIG_DEBUG_ERR, "%s: serial_open(%s) status=%d, err=%s\n", __func__,
                      p->pathname, status, strerror(errno));
#endif
            close_sync_data_pipe(p);
            return (status);
        }

        if (p->parm.serial.rts_state != RIG_SIGNAL_UNSET
                && p->parm.serial.handshake != RIG_HANDSHAKE_HARDWARE)
        {
            status = ser_set_rts(p,
                                 p->parm.serial.rts_state == RIG_SIGNAL_ON);
            want_state_delay = 1;
        }

        if (status != 0)
        {
            close_sync_data_pipe(p);
            return (status);
        }

        if (p->parm.serial.dtr_state != RIG_SIGNAL_UNSET)
        {
            status = ser_set_dtr(p,
                                 p->parm.serial.dtr_state == RIG_SIGNAL_ON);
            want_state_delay = 1;
        }

        if (status != 0)