On 26/09/2022 11:14, Yoshihiro Shimoda wrote: >> >> Don't drop, but instead put it before "properties" for this nested object. > > Oh, I got it. Thanks! > I'll put this before "properties:" like below: > ----- > ethernet-ports: > type: object > Without blank line here. > additionalProperties: false >> properties: This is ok. > '#address-cells': > description: Port number of ETHA (TSNA). > const: 1 > > '#size-cells': > const: 0 > ----- Best regards, Krzysztof