> I think 0 as the Noack configuration from user can also be a valid one > in the case > where user does not want any NoAck policy to be used for a particular > station even > when a non-zero NoAck configuration is set for ndev level. In this case, > the logic > may need to be modified so that the default non-zero configuration > (something like -1) > could be used to determine that the station has been never configured > with any NoAck > policy and use ndev level configuration. Does this sound reasonable? Yes. You'll have to use int instead of u16 I guess, but that's completely doable. johannes