ds_wait_status
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
err = ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);
ds_wait_status(dev, &st);