When set, the OID_802_11_TX_POWER_LEVEL OID requests that the miniport driver set the transmit power level of the underlying NIC to a specified value. The power level value is specified in milliwatts (mW).
When queried, this OID requests that the miniport driver return the transmit power level, in mW, of the NIC.
The data type for this OID is defined as follows:
typedef ULONG NDIS_802_11_TX_POWER_LEVEL;
The IEEE 802.11 NIC will not exceed regulatory power limits. The miniport driver returns NDIS_STATUS_INVALID_DATA if a value is specified that is outside of regulatory power limits.