When queried, the OID_802_11_RSSI OID requests that the miniport driver return the current value of the received signal strength indication (RSSI).
The RSSI is measured in dBm, and the data type is defined as follows:
typedef LONG NDIS_802_11_RSSI;
The normal range for the RSSI values is from -10 through -200 dBm.
A query of this OID is only valid when the device is associated. The driver must return NDIS_STATUS_ADAPTER_NOT_READY if the device is not associated.
A query of this OID must not cause the device to send or receive packets in order to determine the RSSI value.