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/*++
Copyright (c) Microsoft Corporation, All Rights Reserved
Module Name:
AppInterface.h
Abstract:
This module contains the common declarations shared by the driver and the
user application for the PowerFx sample.
Environment:
user and kernel
--*/
#if !defined(_APPINTERFACE_H_)
#define _APPINTERFACE_H_
#include <initguid.h>
//
// Component count for multi-component device
//
#define COMPONENT_COUNT 4
//
// Interface GUID for the PowerFx driver
// {D21FD4DB-5FB6-4df2-B73B-5E7F8632B390}
//
DEFINE_GUID(
GUID_DEVINTERFACE_POWERFX,
0xd21fd4db, 0x5fb6, 0x4df2, 0xb7, 0x3b, 0x5e, 0x7f, 0x86, 0x32, 0xb3, 0x90
);
//
// IOCTLs that the application sends to the PowerFx driver
//
#define IOCTL_INDEX_POWERFX 0x900
#define FILE_DEVICE_POWERFX 0x9000
//
// This IOCTL is used to read a data from a component. The app initializes the
// input buffer with the component number to read. The driver writes the data
// from that component to the output buffer.
// In this sample, the "data" for a given component is just the bit-wise
// complement of the component number. In other words, the data for component
// number 'X' is simply '~X'.
//
#define IOCTL_POWERFX_READ_COMPONENT CTL_CODE(FILE_DEVICE_POWERFX, \
IOCTL_INDEX_POWERFX, \
METHOD_BUFFERED, \
FILE_READ_ACCESS)
//
// Input and output buffers for IOCTL_POWERFX_READ_COMPONENT
//
typedef struct _POWERFX_READ_COMPONENT_INPUT {
ULONG ComponentNumber;
} POWERFX_READ_COMPONENT_INPUT, *PPOWERFX_READ_COMPONENT_INPUT;
typedef struct _POWERFX_READ_COMPONENT_OUTPUT {
ULONG ComponentData;
} POWERFX_READ_COMPONENT_OUTPUT, *PPOWERFX_READ_COMPONENT_OUTPUT;
#endif // _APPINTERFACE_H_
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