Function par_dcd_get

src/parallel.c:723–754

* \brief get Data Carrier Detect (squelch) from Parallel Port * \param p * \param dcdx return value (Must be non NULL) * \return RIG_OK or < 0 error */

 * \return RIG_OK or < 0 error
 */
int par_dcd_get(hamlib_port_t *p, dcd_t *dcdx)
{
    rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);

    switch (p->type.dcd)
    {
    case RIG_DCD_PARALLEL:
    {
        unsigned char reg;
        int status;

        status = par_read_data(p, &reg);

        if (status == RIG_OK)
        {
            *dcdx = (reg & (1 << p->parm.parallel.pin)) ?
                    RIG_DCD_ON : RIG_DCD_OFF;
        }

        return status;
    }

    default:
        rig_debug(RIG_DEBUG_ERR,
                  "%s: unsupported DCD type %d\n",
                  __func__,
                  p->type.dcd);
        return -RIG_ENAVAIL;
    }

    return RIG_OK;
}

/** @} */