deauthentication reason code

[mina]

hello
could you please explain for me about reason code in deauthentication and disassoiciation wireless management frame.
what is the format of reason code and how long is it?
thank you very much

[M/Q]

Client Reason Code...Description...Meaning
0...noReasonCode...Normal operation.
1...unspecifiedReason...Client associated but no longer authorized.
2...previousAuthNotValid...Client associated but not authorized.
3...deauthenticationLeaving...The access point went offline, deauthenticating the client.
4...disassociationDueToInactivity...Client session timeout exceeded.
5...disassociationAPBusy...The access point is busy, performing load balancing, for example.
6...class2FrameFromNonAuthStation...Client attempted to transfer data before it was authenticated.
7...class2FrameFromNonAssStation...Client attempted to transfer data before it was associated.
8...disassociationStaHasLeft...Operating System moved the client to another access point using non-aggressive load balancing.
9...staReqAssociationWithoutAuth...Client not authorized yet, still attempting to associate with an access point.
99...missingReasonCode...Client momentarily in an unknown state.