bulkrwr.h

微软DDK中关于WDM驱动程序模型中USB设备驱动程序的例子,实现了BULK通道的数据传输,对于利用DDK编写USB驱动程序的朋友是个很好的参考.

/*++

Copyright (c) 2000  Microsoft Corporation

Module Name:

    bulkrwr.h

Abstract:

Environment:

    Kernel mode

Notes:

    Copyright (c) 2000 Microsoft Corporation.  
    All Rights Reserved.

--*/
#ifndef _BULKUSB_RWR_H
#define _BULKUSB_RWR_H

typedef struct _BULKUSB_RW_CONTEXT {

    PURB              Urb;
    PMDL              Mdl;
    ULONG             Length;         // remaining to xfer
    ULONG             Numxfer;        // cumulate xfer
    ULONG_PTR         VirtualAddress; // va for next segment of xfer.
    PDEVICE_EXTENSION DeviceExtension;

} BULKUSB_RW_CONTEXT, * PBULKUSB_RW_CONTEXT;

PBULKUSB_PIPE_CONTEXT
BulkUsb_PipeWithName(
    IN PDEVICE_OBJECT  DeviceObject,
    IN PUNICODE_STRING FileName
    );

NTSTATUS
BulkUsb_DispatchReadWrite(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP           Irp
    );

NTSTATUS
BulkUsb_ReadWriteCompletion(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP           Irp,
    IN PVOID          Context
    );

#endif