// hidpddi.h

typedef struct _HIDP_COLLECTION_DESC {
  USAGE                UsagePage;
  USAGE                Usage;
  UCHAR                CollectionNumber;
  UCHAR                Reserved[15];
  USHORT               InputLength;
  USHORT               OutputLength;
  USHORT               FeatureLength;
  USHORT               PreparsedDataLength;
  PHIDP_PREPARSED_DATA PreparsedData;
} HIDP_COLLECTION_DESC, *PHIDP_COLLECTION_DESC;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-hidpddi-_hidp_collection_desc)

_HIDP_COLLECTION_DESC structure

Description

Contains the information of a top-level-collection. This structure is used in the HidP_GetCollectionDescription call.

Members

`UsagePage`

Specifies the usage page of the usage ID specified by Usage.

`Usage`

Indicates a usage ID.

`CollectionNumber`

The index of the collection in the array of HIDP_COLLECTION_DESC structure. This is a 1-based value.

`Reserved`

Reserved for internal system use. Must be 0.

`InputLength`

The maximum length of an input report of this collection.

`OutputLength`

The maximum length of an output report of this collection.

`FeatureLength`

The maximum length of a feature report of this collection.

`PreparsedDataLength`

The length of the preparsed data pointed to by PreparsedData.

`PreparsedData`

A pointer to a _HIDP_PREPARSED_DATA structure that contains a top-level collection's preparsed data.

HIDP_COLLECTION_DESC - NtDoc