"sai sai via DotNetMonster.com" wrote:

> I used scsi_pass_through with Device_io_control.But i am not getting any
> output.what is my mistake in my code.Any body Please help me Urgent??
>
>
> [StructLayout(LayoutKind.Sequential)]
> class SCSI_PASS_THROUGH
> {
> public UInt16 Length;// = (UInt16) Marshal.SizeOf(typeof
> (SCSI_PASS_THROUGH));
> public byte ScsiStatus;
> public byte PathId;
> public byte TargetId;
> public byte Lun;
> public byte CdbLength;
> public byte SenseInfoLength;
> public byte DataIn;// = SCSI_IOCTL_DATA_IN;
> public UInt32 DataTransferLength;
> public UInt32 TimeOutValue;
> public char[] DataBufferOffset;// = (UInt32)
> public UInt32 SenseInfoOffset;// = (UInt32)
> public byte[] Cdb = new byte[16];
> //public char[] Cdb = new char[16];
> public SCSI_PASS_THROUGH(byte target, byte cdbLen, UInt32
> dataTransferLength)
> {
> TargetId = target;
> CdbLength = cdbLen;
> DataTransferLength = dataTransferLength;
> }
> }
>
> [StructLayout(LayoutKind.Sequential)]
> struct SCSI_PASS_THROUGH_WITH_BUFFERS
> {
> public UInt32 Filler;
> [MarshalAs(UnmanagedType.ByValArray, SizeConst=32)]
> public byte[] ucSenseBuf;
> [MarshalAs(UnmanagedType.ByValArray, SizeConst=512)]
> public byte[] ucDataBuf;
>
> }
>
> [DllImport("kernel32.dll", SetLastError = true)]
> static extern int WriteFile(
> IntPtr hFile,
> char[] lpBuffer,
> int nNumberOfBytesToWrite,
> ref int lpNumberOfBytesWritten,
> IntPtr lpOverlapped);
>
> [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true,
> CharSet = CharSet.Auto)]
> static extern int DeviceIoControl(
> IntPtr hDevice, uint dwIoControlCode,
> SCSI_PASS_THROUGH lpInBuffer, int nInBufferSize,
> ref IntPtr lpOutBuffer, int nOutBufferSize,
> ref int lpBytesReturned, IntPtr lpOverlapped);
>
>
> [DllImport("kernel32.dll", SetLastError = true)]
> static extern IntPtr CreateFile(
> string lpFileName,
> uint dwDesiredAccess,
> uint dwShareMode,
> IntPtr lpSecurityAttributes,
> uint dwCreationDisposition,
> uint dwFlagsAndAttributes,
> IntPtr hTemplateFile);
>
> unsafe public static void MoveFile()
> {
> IntPtr hFile = CreateFile(@"C:\\
> test.txt",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ,IntPtr.Zero,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,IntPtr.Zero);
> char[] buf=new char[4096];
> for (int i = 1; i< 1023; i++)
> {
> buf[i] =(char)i;
> }
>
> IntPtr hDevice=IntPtr.Zero;
> //hDevice = CreateFile(@"\\.\
> G:",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,IntPtr.Zero,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,IntPtr.Zero);
> //hDevice = CreateFile(@"\\.\G:\\
> kk.x",GENERIC_READ,FILE_SHARE_READ,IntPtr.Zero,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,IntPtr.Zero);
> //SCSI_PASS_THROUGH_WITH_BUFFERS sptwb = new
> SCSI_PASS_THROUGH_WITH_BUFFERS(hFile,hDevice, 1024, 1024);
> //int junk=0;
> //int res =WriteFile(hDevice, buf, buf.Length ,ref junk,
> IntPtr.Zero);
>
> hDevice = CreateFile(@"\\.\
> F:",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,IntPtr.Zero,OPEN_EXISTING,0,IntPtr.Zero);
> SCSI_PASS_THROUGH spt = new SCSI_PASS_THROUGH(0,10,4096);
>
> spt.Length = (UInt16) Marshal.SizeOf(typeof(SCSI_PASS_THROUGH));
> spt.ScsiStatus = 0;
> spt.PathId =0;
> //spt.TargetId =01;
> spt.Lun = 0;
> //spt.CdbLength = 10;
> spt.SenseInfoLength = 0;
> spt.DataIn = SCSI_IOCTL_DATA_IN;
> //spt.DataTransferLength=4096;
> spt.TimeOutValue = 10;
> spt.DataBufferOffset = buf;
>
> spt.SenseInfoOffset = 0;
>
> spt.Cdb[0] = 0xaa;
> spt.Cdb[1] = 0;
> spt.Cdb[2] = 0;
> spt.Cdb[3] = 0;
> spt.Cdb[4] = 0;
> spt.Cdb[5] = 0;
> spt.Cdb[6] = 0;
> spt.Cdb[7] = 0;
> spt.Cdb[8] = 8;
> spt.Cdb[9] = 0;
>
>
> int inputSize = Marshal.SizeOf(typeof(SCSI_PASS_THROUGH_WITH_BUFFERS));
> IntPtr input = Marshal.AllocHGlobal(inputSize);
> int outputSize = Marshal.SizeOf(typeof(byte)) * 4096;
> IntPtr output = Marshal.AllocHGlobal(outputSize);
> int size = 0;
> IntPtr p=IntPtr.Zero;
> int fResult = DeviceIoControl(
> hDevice,
> IOCTL_SCSI_PASS_THROUGH,//sptwb,//SCSI_PASS_THROUGH,//IOCTL_READ_DEVICE_INFO,//FSCTL_GET_VOLUME_BITMAP,
> spt,//input,
> Marshal.SizeOf(spt),
> ref output,
> outputSize,
> ref size,
> IntPtr.Zero);
>
> --
> Message posted via http://www.dotnetmonster.com