USBCAMD_INTERFACE structure (usbcamdi.h)
The USBCAMD_INTERFACE structure defines a set of services related to the USB bus interfaces.
Syntax
typedef struct {
INTERFACE Interface;
PFNUSBCAMD_WaitOnDeviceEvent USBCAMD_WaitOnDeviceEvent;
PFNUSBCAMD_BulkReadWrite USBCAMD_BulkReadWrite;
PFNUSBCAMD_SetVideoFormat USBCAMD_SetVideoFormat;
PFNUSBCAMD_SetIsoPipeState USBCAMD_SetIsoPipeState;
PFNUSBCAMD_CancelBulkReadWrite USBCAMD_CancelBulkReadWrite;
} USBCAMD_INTERFACE, *PUSBCAMD_INTERFACE;
Members
Interface
Describes the interface that USBCAMD exports for use by other drivers.
USBCAMD_WaitOnDeviceEvent
Pointer to the camera minidriver defined USBCAMD_WaitOnDeviceEvent service.
USBCAMD_BulkReadWrite
Pointer to the camera minidriver defined USBCAMD_BulkReadWrite service.
USBCAMD_SetVideoFormat
Pointer to the camera minidriver defined USBCAMD_SetVideoFormat service.
USBCAMD_SetIsoPipeState
Pointer to the camera minidriver defined USBCAMD_SetIsoPipeState service.
USBCAMD_CancelBulkReadWrite
Pointer to the camera minidriver defined USBCAMD_CancelBulkReadWrite service.
Remarks
The camera minidriver may obtain the USBCAMD_INTERFACE entry points at any point after it has received SRB_INITIALIZATION_COMPLETE. The IRP for acquiring a USBCAMD_INTERFACE is IRP_MN_QUERY_INTERFACE and must be sent at IRQL = PASSIVE_LEVEL. Typically, a camera minidriver obtains the addresses of the USBCAMD_INTERFACE entry points once toward the end of the initialization of the camera minidriver. The members of the USBCAMD_INTERFACE structure are filled with the minidriver's entry points as described in Acquiring USBCAMD2 Features
USBCAMD_INTERFACE is not supported in the original USBCAMD.
Requirements
| Requirement | Value |
|---|---|
| Header | usbcamdi.h (include Usbcamdi.h) |