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int HAMLIB_API rig_set_ptt ( RIG rig,
vfo_t  vfo,
ptt_t  ptt 

set PTT on/off

rig The rig handle
vfo The target VFO
ptt The PTT status to set to
Sets "Push-To-Talk" on/off.

RIG_OK if the operation has been sucessful, otherwise a negative value if an error occured (in which case, cause is set appropriately).
See also:

Definition at line 1109 of file rig.c.

References rig::caps, rig_state::current_vfo, hamlib_port_t::ptt, rig_state::pttport, RIG_PTT_NONE, RIG_PTT_ON, RIG_PTT_PARALLEL, RIG_PTT_RIG, RIG_PTT_SERIAL_DTR, RIG_PTT_SERIAL_RTS, RIG_VFO_CURR, rig_caps::set_ptt, rig_caps::set_vfo, rig::state, rig_caps::targetable_vfo, and hamlib_port_t::type.

            const struct rig_caps *caps;
            int retcode;
            vfo_t curr_vfo;

            if (CHECK_RIG_ARG(rig))
                  return -RIG_EINVAL;

            caps = rig->caps;

            switch (rig->state.pttport.type.ptt) {
            case RIG_PTT_RIG:
                  if (caps->set_ptt == NULL)
                        return -RIG_ENIMPL;

                  if ((caps->targetable_vfo&RIG_TARGETABLE_PURE) || 
                                    vfo == RIG_VFO_CURR || vfo == rig->state.current_vfo)
                        return caps->set_ptt(rig, vfo, ptt);
                  if (!caps->set_vfo)
                        return -RIG_ENTARGET;
                  curr_vfo = rig->state.current_vfo;
                  retcode = caps->set_vfo(rig, vfo);
                  if (retcode != RIG_OK)
                              return retcode;
                  retcode = caps->set_ptt(rig, vfo, ptt);
                  caps->set_vfo(rig, curr_vfo);
                  return retcode;


            case RIG_PTT_SERIAL_DTR:
                              return ser_set_dtr(&rig->state.pttport, ptt==RIG_PTT_ON);

            case RIG_PTT_SERIAL_RTS:
                              return ser_set_rts(&rig->state.pttport, ptt==RIG_PTT_ON);

            case RIG_PTT_PARALLEL:
                        return par_ptt_set(&rig->state.pttport, ptt);

            case RIG_PTT_NONE:
                        return -RIG_ENAVAIL;    /* not available */
                        return -RIG_EINVAL;

            return RIG_OK;

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