Leaked source code of windows server 2003
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
hid.h
Abstract:
This module contains the declarations and definitions for use with the
hid user mode client sample driver.
Environment:
Kernel & user mode
Revision History:
Nov-96 : Created by Kenneth D. Ray
--*/
#ifndef HID_H
#define HID_H
#include "hidsdi.h"
#include "setupapi.h"
#define ASSERT(x)
//
// 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 {
BOOL 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.
ULONG ReportID; // ReportID for this given data structure
BOOL IsDataSet; // Variable to track whether a given data structure
// has already been added to a report structure
union {
struct {
ULONG UsageMin; // Variables to track the usage minimum and max
ULONG UsageMax; // If equal, then only a single usage
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.
HIDD_ATTRIBUTES Attributes;
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;
DWORD dwDevInst; // device instance
BOOL bRemoved; // this device has been removed by pnp
BOOL bNew; // this device is a new arrival by pnp
PSP_DEVICE_INTERFACE_DETAIL_DATA functionClassDeviceData; // this contains the device path
struct _HID_DEVICE *Next;
struct _HID_DEVICE *Prev;
} HID_DEVICE, *PHID_DEVICE;
// These functions are implemented in PNP.c
LONG
FindKnownHidDevices (
OUT PHID_DEVICE *pHidDevices,
OUT PULONG pNumberHidDevices
);
LONG
FillDeviceInfo (
IN PHID_DEVICE HidDevice
);
VOID
CloseHidDevices ();
VOID
CloseHidDevice (
IN OUT PHID_DEVICE HidDevice
);
BOOL
OpenHidFile (
IN PHID_DEVICE HidDevice
);
BOOL
CloseHidFile (
IN PHID_DEVICE HidDevice
);
// These functions are implemented in Report.c
BOOL
Write (
PHID_DEVICE HidDevice
);
BOOL
UnpackReport (
IN PCHAR ReportBuffer,
IN USHORT ReportBufferLength,
IN HIDP_REPORT_TYPE ReportType,
IN OUT PHID_DATA Data,
IN ULONG DataLength,
IN PHIDP_PREPARSED_DATA Ppd
);
BOOL
GetFeature (
PHID_DEVICE HidDevice
);
#endif