Source code of Windows XP (NT5)
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
hidexe.h
Abstract:
This module contains the declarations and definitions for use with the
hid user more client sample driver.
Environment:
Kernel & user mode
@@BEGIN_DDKSPLIT
Revision History:
Nov-96 : Created by Kenneth D. Ray
@@END_DDKSPLIT
--*/
#ifndef HIDEXE_H
#define HIDEXE_H
#include <hidpddi.h>
//
//
#define DIGCF_FUNCTION 0x00000010
#define DIOD_FUNCTION 0x00000008
#define DIREG_FUNCTION 0x00000008
//
// A structure to hold the steady state data received from the hid device.
// Each time a read packet is received we fill in this structure.
// Each time we wish to write to a hid device we fill in this structure.
// This structure is here only for convenience. Most real applications will
// have a more efficient way of moving the hid data to the read, write, and
// feature routines.
//
typedef struct _HID_DATA {
BOOLEAN IsButtonData;
UCHAR Reserved;
USAGE UsagePage; // The usage page for which we are looking.
ULONG Status; // The last status returned from the accessor function
// when updating this field.
union {
struct {
ULONG MaxUsageLength; // Usages buffer length.
PUSAGE Usages; // list of usages (buttons ``down'' on the device.
} ButtonData;
struct {
USAGE Usage; // The usage describing this value;
USHORT Reserved;
ULONG Value;
LONG ScaledValue;
} ValueData;
};
} HID_DATA, *PHID_DATA;
typedef struct _HID_DEVICE {
// HANDLE HidDevice; // A file handle to the hid device.
// PHIDP_PREPARSED_DATA Ppd; // The opaque parser info describing this device
// HIDP_CAPS Caps; // The Capabilities of this hid device.
PCHAR InputReportBuffer;
PHID_DATA InputData; // array of hid data structures
ULONG InputDataLength; // Num elements in this array.
PHIDP_BUTTON_CAPS InputButtonCaps;
PHIDP_VALUE_CAPS InputValueCaps;
PCHAR OutputReportBuffer;
PHID_DATA OutputData;
ULONG OutputDataLength;
PHIDP_BUTTON_CAPS OutputButtonCaps;
PHIDP_VALUE_CAPS OutputValueCaps;
PCHAR FeatureReportBuffer;
PHID_DATA FeatureData;
ULONG FeatureDataLength;
PHIDP_BUTTON_CAPS FeatureButtonCaps;
PHIDP_VALUE_CAPS FeatureValueCaps;
} HID_DEVICE, *PHID_DEVICE;
BOOLEAN
FindKnownHidDevices (
OUT PHID_DEVICE * HidDevices, // A array of struct _HID_DEVICE
OUT PULONG NumberDevices // the length of this array.
);
BOOLEAN
CloseHidDevices (
OUT PHID_DEVICE * HidDevices, // A array of struct _HID_DEVICE
OUT PULONG NumberDevices // the length of this array.
);
BOOLEAN
Read (
PHID_DEVICE HidDevice
);
BOOLEAN
Write (
PHID_DEVICE HidDevice
);
BOOLEAN
SetFeature (
PHID_DEVICE HidDevice
);
BOOLEAN
GetFeature (
PHID_DEVICE HidDevice
);
#endif