实现安全删除硬件（USB Mass Storage device）？

Question

我查了很多文档，没有找到资料，似乎不同的操作系统有不同的做法，也没有什么通用标准。我想问的是：在windows程序中怎样实现安全删除硬件，windows 发送了什么命令？(比如：SCSI 命令？或者别的什么?)
Any source code?

Answer 1

http://community.csdn.net/Expert/topic/2948/2948874.xml?temp=.8924982

Answer 2

http://community.csdn.net/Expert/TopicView3.asp?id=2948874

Answer 3

删除usb设备：#include <tchar.h>
#include <stdio.h>
#include <windows.h>
#include <devguid.h>#define DWORD_PTR DWORD
#define ULONG_PTR DWORD
extern "C" { 
#include "hidsdi.h" 
}
// 需加入hid.lib#include <setupapi.h>
// 需加入setupapi.lib#include <regstr.h>
#include <winbase.h>#include <cfgmgr32.h>
// 需要加入cfgmgr32.lib#include <initguid.h>
//#include <usbiodef.h>
DEFINE_GUID(GUID_DEVINTERFACE_USB_DEVICE,
  0xA5DCBF10L, 0x6530, 0x11D2, 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED);
#define GUID_CLASS_USB_DEVICE           GUID_DEVINTERFACE_USB_DEVICEint main(int argc, _TCHAR* argv[])
{
   HDEVINFO hDevInfo;
   
   SP_DEVINFO_DATA DeviceInfoData;
   DWORD i;   //--------------------------------------------------------------------------
   // 获取设备信息
   hDevInfo = SetupDiGetClassDevs((LPGUID)&GUID_CLASS_USB_DEVICE,
       0, // Enumerator
       0,
       DIGCF_PRESENT | DIGCF_DEVICEINTERFACE );
   if (hDevInfo == INVALID_HANDLE_VALUE) 
   {
       // 查询信息失败
       printf("ERROR - SetupDiGetClassDevs()");
       return 1;
   }
   //--------------------------------------------------------------------------   // 枚举每个USB设备
   DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
   for (i=0;SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData);i++)
   {
        LPTSTR buffer = NULL;
        PVOID buffer2 = NULL;
        DWORD buffersize = 0;
        ULONG len;
        CONFIGRET   cr;
        PNP_VETO_TYPE pnpvietotype;
        CHAR vetoname[MAX_PATH];
        ULONG ulStatus;
        ULONG ulProblemNumber;        cr = CM_Get_DevNode_Status( &ulStatus,
                                    &ulProblemNumber,
                                    DeviceInfoData.DevInst,
                                    0);
        if ( CR_SUCCESS == cr ) 
{
            printf("OK - CM_Get_DevNode_Status()[%d]\n", cr);
            printf("OK - CM_Get_DevNode_Status() sts [%x]\n", ulStatus);
            printf("OK - CM_Get_DevNode_Status() pro [%x]\n", ulProblemNumber);
        } 
else 
{
            printf("ERROR - CM_Get_DevNode_Status()[%d]\n", cr);
            printf("ERROR - CM_Get_DevNode_Status()[%d]\n", GetLastError());
        }
        // DN_DISABLEABLE or DN_REMOVABLE
        if ((DN_DISABLEABLE & ulStatus ) != 0 ) 
{
            printf("HAS - DN_DISABLEABLE()[%x]\n", DN_DISABLEABLE & ulStatus);
        } 
else 
{
           continue;
        }
        if ((DN_REMOVABLE & ulStatus ) != 0 ) 
{
            printf("HAS - DN_REMOVABLE()[%x]\n", DN_REMOVABLE & ulStatus);
        }
else 
{
           continue;
        }        len = MAX_PATH;
        // pnpvietotype = PNP_VetoDevice; 
        cr = CM_Request_Device_Eject(
                            DeviceInfoData.DevInst,
                            &pnpvietotype,
                            vetoname,
                            len,
                            0
                            );
        if ( CR_SUCCESS == cr ) {
            printf("OK - CM_Request_Device_Eject()[%d]\n", cr);
        } else {
            printf("ERROR - CM_Request_Device_Eject()[%d]\n", cr);
            printf("ERROR - CM_Request_Device_Eject()[%d]\n", GetLastError());
        }   }
       
       
   if ( GetLastError()!=NO_ERROR &&
        GetLastError()!=ERROR_NO_MORE_ITEMS )
   {
       // Insert error handling here.
       return 1;
   }
       
   //  Cleanup
   SetupDiDestroyDeviceInfoList(hDevInfo);   return 0;
}

Answer 4

http://community.csdn.net/Expert/topic/4211/4211978.xml?temp=.5731165