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When set, the OID_802_11_POWER_MODE OID requests that the miniport driver set the power mode of the underlying NIC to the specified value. The miniport driver returns NDIS_STATUS_INVALID_DATA if an invalid value is specified.

When queried, this OID requests that the miniport driver return the current power mode of the NIC.

Support for this OID is not mandatory, but it is recommended. If the miniport driver does not support this OID, it returns NDIS_STATUS_NOT_SUPPORTED.

The values for this OID, which are defined in the NDIS_802_11_POWER_MODE enumeration, are defined as follows:


Specifies Constantly Awake Mode (CAM). When the power mode is set to CAM, the device is always on. If it supports power saving modes, it is recommended that the device specify a listen interval when it associates with the access point. Specifying a listen interval allows the power mode to be changed from CAM mode to another power mode without requiring a reassociation to the access point.


Specifies Power Save Polling (PSP) that utilizes the maximum (MAX) power saving. A power mode of MAX results in the greatest power savings for the IEEE 802.11 NIC radio.


Specifies Power Save Polling (PSP) that utilizes the fastest power-saving mode. This power mode must provide the best combination of network performance and power usage.



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