fxrelateddevice.hpp

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/*++
 
Copyright (c) Microsoft Corporation
 
Module Name:
 
    FxRelatedDevice.hpp
 
Abstract:
 
    This module defines the "related device" class.  These objects are used
    to handle device relations queries.
 
Author:
 
 
 
Environment:
 
    Both kernel and user mode
 
Revision History:
 
--*/
 
#ifndef _FXRELATEDDEVICE_H_
#define _FXRELATEDDEVICE_H_
 
enum FxRelatedDeviceState {
    RelatedDeviceStateUnspecified = 0,
    RelatedDeviceStateNeedsReportPresent,
    RelatedDeviceStateReportedPresent,
    RelatedDeviceStateNeedsReportMissing,
};
 
class FxRelatedDevice : public FxObject {
    friend FxRelatedDeviceList;
 
protected:
    FxTransactionedEntry m_TransactionedEntry;
 
    MdDeviceObject m_DeviceObject;
 
public:
    FxRelatedDeviceState m_State;
 
public:
    FxRelatedDevice(
        __in MdDeviceObject DeviceObject,
        __in PFX_DRIVER_GLOBALS FxDriverGlobals
        );
 
    ~FxRelatedDevice(
        VOID
        );
 
    MdDeviceObject
    GetDevice(
        VOID
        )
    {
        return m_DeviceObject;
    }
 
    DECLARE_INTERNAL_NEW_OPERATOR();
 
#ifdef INLINE_WRAPPER_ALLOCATION
#if (FX_CORE_MODE==FX_CORE_USER_MODE)
    FORCEINLINE
    PVOID
    GetCOMWrapper(
        )
    {
        PBYTE ptr = (PBYTE) this;
        return (ptr + (USHORT) WDF_ALIGN_SIZE_UP(sizeof(*this), MEMORY_ALLOCATION_ALIGNMENT));
    }
#endif
#endif
};
 
#endif // _FXRELATEDDEVICE_H_