OID_DOT11_FREQUENCY_BANDS_SUPPORTED

  • Article

Important  The Native 802.11 Wireless LAN interface is deprecated in Windows 10 and later. Please use the WLAN Device Driver Interface (WDI) instead. For more information about WDI, see WLAN Universal Windows driver model.

 

When queried, the OID_DOT11_FREQUENCY_BANDS_SUPPORTED object identifier (OID) requests that the miniport driver return the IEEE 802.11 dot11FrequencyBandsSupported MIB object for the current PHY type on the 802.11 station.

This MIB object specifies the frequency bands in which the orthogonal frequency division multiplexing (OFDM) PHY is capable of operating. Frequency bands are defined for:

  • Unlicensed national information infrastructure (U-NII) bands.

  • Conference of European Post and Telecommunication (CEPT) bands.

  • Japan 5 GHz bands.

The data type for OID_DOT11_FREQUENCY_BANDS_SUPPORTED is a ULONG value, which defines the supported frequency bands through one of the bitmasks in the following table.

Bit Description

0

Capable of operating in the lower (5.15-5.25 GHz) U-NII band.

1

Capable of operating in the middle (5.25-5.35 GHz) U-NII band.

2

Capable of operating in the upper (5.725-5.825 GHz) U-NII band.

3

Capable of operating in CEPT B (5.47-5.7253 GHz) band.

4

Capable of operating in the lower Japan (5.15-5.25 GHz) band.

5

Capable of operating in the Japan 5.0 (5.03-5.091 GHz) band.

6

Capable of operating in the Japan 4.9 (4.9-5.0GHz) band.

 

The dot11FrequencyBandsSupported MIB object is valid for only the OFDM PHY type. If the current PHY type is not set to dot11_phy_type_ofdm, the miniport driver must fail a query of OID_DOT11_FREQUENCY_BANDS_SUPPORTED by returning NDIS_STATUS_INVALID_DATA from its MiniportOidRequest function.

If the miniport driver is operating in Extensible Station (ExtSTA) mode, the current PHY type is determined through the ExtSTA msDot11CurrentPhyID MIB object. This MIB object specifies the index of the current PHY type within the 802.11 station's list of supported PHY types. For more information about msDot11CurrentPhyID, see OID_DOT11_CURRENT_PHY_ID.

Note  A Native 802.11 miniport driver that is designed to run on the Windows Vista or Windows Server 2008 operating systems must always reset this 802.11 MIB OID to its default value. This is the case regardless of the value of the bSetDefaultMIB member of the DOT11_RESET_REQUEST structure. This requirement applies to a miniport driver that, in a call to the NdisMSetMiniportAttributes function, sets MiniportAttributes -> Native_802_11_Attributes -> Header -> Revision to NDIS_MINIPORT_ADAPTER_802_11_ATTRIBUTES_REVISION_1.

 

Requirements

Version

Available in Windows Vista and later versions of the Windows operating systems.

Header

 Windot11.h (include Ndis.h)

See also

Native 802.11 MIB OIDs

Native 802.11 Wireless LAN OIDs