When queried, the OID_DOT11_CCA_WATCHDOG_COUNT_MAX object identifier (OID) requests that the miniport driver return the value of the IEEE 802.11 dot11CCAWatchdogCountMax management information base (MIB) object for the current PHY type on the 802.11 station.
The dot11CCAWatchdogCountMax MIB object, along with the IEEE 802.11 dot11CCAWatchdogTimerMax MIB object, specifies when the current PHY type can ignore energy detected on the channel through the clear channel assessment (CCA) mechanism. For more information about CCA, refer to Clause 126.96.36.199 of the IEEE 802.11-2012 standard.
The data type for OID_DOT11_CCA_WATCHDOG_COUNT_MAX is a ULONG value.
The dot11CCAWatchdogCountMax MIB object is only valid for the infrared (IR) PHY type. If the current PHY type is not set to dot11_phy_type_ir, the miniport driver must fail the query request 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 this MIB object, 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.
|Available in Windows Vista and later versions of the Windows operating systems.|