// wwan.h

typedef struct _WWAN_USSD_EVENT {
  WWAN_USSD_EVENT_TYPE    EventType;
  WWAN_USSD_SESSION_STATE SessionState;
  WWAN_USSD_STRING        UssdString;
} WWAN_USSD_EVENT, *PWWAN_USSD_EVENT;
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Windows Driver Kit DDI reference (ns-wwan-_wwan_ussd_event)

_WWAN_USSD_EVENT structure

Description

The WWAN_USSD_REQUEST structure describes an Unstructured Supplementary Service Data (USSD) event.

Members

`EventType`

The type of USSD event.

`SessionState`

The USSD string is the first message of a USSD session.

`UssdString`

The USSD string that accompanies the event.

WWAN_USSD_EVENT - NtDoc