counter_attr_create
err = counter_attr_create(dev, cattr_group, &counter_num_signals_comp,
err = counter_attr_create(dev, cattr_group, &counter_num_counts_comp,
err = counter_attr_create(dev, cattr_group,
err = counter_attr_create(dev, group, ext, scope, parent);
err = counter_attr_create(dev, cattr_group, &comp, scope, signal);
err = counter_attr_create(dev, group, &comp,
err = counter_attr_create(dev, cattr_group, &comp, scope, count);
err = counter_attr_create(dev, cattr_group, &comp, scope, count);