// video.h

VIDEOPORT_DEPRECATED VIDEOPORT_API ULONG VideoPortGetAssociatedDeviceID(
  [in] IN PVOID DeviceObject
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-video-videoportgetassociateddeviceid)

VideoPortGetAssociatedDeviceID function

Description

The VideoPortGetAssociatedDeviceID function obtains the child ID for a specified device object.

Parameters

`DeviceObject` [in]

Pointer to the child device object, a PDO.

Return value

VideoPortGetAssociatedDeviceID returns the child ID for the given device object.

Remarks

VideoPortGetAssociatedDeviceID can be used to obtain the child ID for a child device object. For example, this is useful with I2C. See Using I2C to Communicate with a Child Device for more information.

View the official Windows Driver Kit DDI reference