static int32_t dvbapi_get_descrambler_info(void)
{
    int32_t ret = 0;

    // In enigma2 all ca devices are listed under adapter0. In addition we only
    // need to ask one ca device to get the total number of descramblers. In
    // PC installations, there are no ca devices, so we use a predefined value.

    if(cfg.dvbapi_boxtype == BOXTYPE_PC || cfg.dvbapi_boxtype == BOXTYPE_PC_NODMX)
    {
        ca_descramblers_total = INDEX_MAX_NET;
        return 1; // nothing else to do for PCs
    }

    int32_t fd = 0, ca_offset = 0;
    char device_path[128], device_path2[128];

    if(cfg.dvbapi_boxtype == BOXTYPE_DUCKBOX ||
        cfg.dvbapi_boxtype == BOXTYPE_DBOX2 ||
        cfg.dvbapi_boxtype == BOXTYPE_UFS910)
    {
        ca_offset = 1;
    }

    // Ask device for exact number of ca descramblers
    snprintf(device_path2, sizeof(device_path2), devices[selected_box].ca_device, ca_offset);
    snprintf(device_path, sizeof(device_path), devices[selected_box].path, 0);

    if (!cs_strncat(device_path, device_path2, sizeof(device_path)))
        return ret;

    DIR *dir = NULL;
    struct dirent *ep = NULL;
    ca_descramblers_total = 0;

    snprintf(device_path2, sizeof(device_path2), devices[selected_box].path, 0);

    if ((dir = opendir(device_path2)) != NULL)
    {
        while ((ep = readdir(dir)) != NULL)
        {
            if (strcmp(ep->d_name, ".") != 0 && strcmp(ep->d_name, "..") != 0)
            {
                // search for ca0, ca1...
                if (ep->d_name[0] == 'c' && ep->d_name[1] == 'a')
                {
                    ca_descramblers_total += 1;
                }
            }
        }

        closedir(dir);
    }

    if (ca_descramblers_total > 0)
    {
        cs_log("Detected %s device, total available descramblers: %d", device_path, ca_descramblers_total);
        ret = 1;
    }
    else
    {
        // Use a safe default in case we fail to get the exact number
        ca_descramblers_total = INDEX_MAX_LOCAL;
        cs_log("Detected %s device, guesing safe count of total available descramblers: %d", device_path, ca_descramblers_total);
        ret = 0;
    }

    return ret;
}