OID_WWAN_USSD

OID_WWAN_USSD sends Unstructured Supplementary Service Data (USSD) requests to the underlying MB device.

Query requests are not supported.

Miniport drivers must process set requests asynchronously, initially returning NDIS_STATUS_INDICATION_REQUIRED to the original request, and later sending an NDIS_STATUS_WWAN_USSD status notification containing the status of the initial USSD request when they have completed the transaction.

Windows does not send an OID_WWAN_USSD request to a miniport driver if a previous request is still in progress, with the exception of a request to cancel a pending operation by setting the WWAN_USSD_REQUEST RequestType member of the request to WwanUssdRequestCancel.

When a request is canceled, the miniport driver must respond to both the canceled request and the cancel request.

Requirements

Version

Supported starting with Windows 8.

Header

Ntddndis.h (include Ndis.h)

See also

NDIS_STATUS_WWAN_USSD
WWAN_USSD_REQUEST

 

 

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