OID_802_11_TX_ANTENNA_SELECTED
When set, the OID_802_11_TX_ANTENNA_SELECTED OID requests that the miniport driver set, to a specified value, the antenna number that identifies the currently selected transmit (TX) antenna. A value of 0xFFFFFFFF indicates that all TX antennas are selected. That is, a value of 0xFFFFFFFF indicates that the wireless LAN is in a state of diversity. Otherwise, the antennas are numbered from zero to the number of antennas minus one. If an invalid antenna value is specified, the miniport driver returns NDIS_STATUS_INVALID_DATA.
When queried, this OID requests that the miniport driver return the antenna number that identifies the currently selected transmit antenna.
If the miniport driver does not support this OID, it returns NDIS_STATUS_NOT_SUPPORTED.
The data type for this OID is defined as follows:
typedef ULONG NDIS_802_11_ANTENNA;