Function rig_set_rit

src/rig.c:6098–6153

* \brief set the RIT * \param rig The rig handle * \param vfo The target VFO * \param rit The RIT offset to adjust to * * Sets the current RIT offset. A value of 0 for \a rit disables RIT. * * \return RIG_OK if the operation has been successful, otherwise * a negative value if an error occurred (in which case, cause is * set appropriately). * * \sa rig_get_rit() */

 * \sa rig_get_rit()
 */
int HAMLIB_API rig_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
{
    const struct rig_caps *caps;
    int retcode, rc2;
    vfo_t curr_vfo;

    if (CHECK_RIG_ARG(rig))
    {
        rig_debug(RIG_DEBUG_ERR, "%s: rig or rig->caps is null\n", __func__);
        return -RIG_EINVAL;
    }

    ENTERFUNC;

    caps = rig->caps;

    if (caps->set_rit == NULL)
    {
        RETURNFUNC(-RIG_ENAVAIL);
    }

    if ((caps->targetable_vfo & RIG_TARGETABLE_RITXIT)
            || vfo == RIG_VFO_CURR
            || vfo == STATE(rig)->current_vfo)
    {
        HAMLIB_TRACE;
        retcode = caps->set_rit(rig, vfo, rit);
        RETURNFUNC(retcode);
    }

    if (!caps->set_vfo)
    {
        RETURNFUNC(-RIG_ENAVAIL);
    }

    curr_vfo = STATE(rig)->current_vfo;
    HAMLIB_TRACE;
    retcode = caps->set_vfo(rig, vfo);

    if (retcode != RIG_OK)
    {
        RETURNFUNC(retcode);
    }

    retcode = caps->set_rit(rig, vfo, rit);
    /* try and revert even if we had an error above */
    rc2 = caps->set_vfo(rig, curr_vfo);

    if (RIG_OK == retcode)
    {
        /* Return the first error code */
        retcode = rc2;
    }

    RETURNFUNC(retcode);
}