PHY_CONFIG_FORCE_ROOT_NODE_MASK
return (quadlet & PHY_CONFIG_FORCE_ROOT_NODE_MASK) >> PHY_CONFIG_FORCE_ROOT_NODE_SHIFT;
*quadlet &= ~PHY_CONFIG_FORCE_ROOT_NODE_MASK;
*quadlet |= (has_force_root_node << PHY_CONFIG_FORCE_ROOT_NODE_SHIFT) & PHY_CONFIG_FORCE_ROOT_NODE_MASK;