NDIS_STATUS_WDI_INDICATION_LINK_STATE_CHANGE (dot11wificxintf.h)

Important

This topic is part of the WiFiCx driver model. WiFiCx is the Wi-Fi driver model released in Windows 11. We recommend that you use WiFiCx to take advantage of the latest features. The previous Wi-Fi driver model WDI is in maintenance mode and will only receive high priority fixes.

WiFiCx drivers use NDIS_STATUS_WDI_INDICATION_LINK_STATE_CHANGE to indicate any of the following situations:

• The link speed changed.
• The link quality changed by more than a threshold value. The threshold is 1 if the connection quality hint is set to WDI_CONNECTION_QUALITY_LOW_LATENCY (defined in WDI_CONNECTION_QUALITY_HINT). Otherwise, the threshold is 5.

Object
Port

This information from this indication is used by the host to keep track of metadata about the current link, and it may be propagated to the user.

In Station and P2P Client cases, the Peer MAC Address is set to the BSSID of the connected network. In AP/P2P GO cases, the Peer MAC Address is set to the MAC address of a given connected device.

For MLO connections, the link state indication will provide information for each link. For non-MLO connections, it will provide information for a single link.

Payload data

Type	Multiple TLV instances allowed	Optional	Description
WDI_TLV_LINK_STATE_CHANGE_PARAMETERS			The link state change parameters.
WDI_TLV_LINK_INFO	X		Link information parameters.
WDI_TLV_BSS_ENTRY_CHANNEL_INFO		X	Channel number and Band ID of the current connection.

Requirements

Requirement	Value
Minimum supported client	Windows 11
Minimum supported server	Windows Server 2022
Header	dot11wificxintf.h