public bool Ioctl(ScsiPassThroughWrapper sptw)
{
IntPtr bufferPointer = IntPtr.Zero;
bool ioresult = false;
try
{
Int32 bufferSize = Marshal.SizeOf(sptw.sptBuffered);
bufferPointer = Marshal.AllocHGlobal(bufferSize);
Marshal.StructureToPtr(sptw.sptBuffered, bufferPointer, true);
ioresult = DeviceIoControl(this.handle, (uint)IoctlCodes.IOCTL_SCSI_PASS_THROUGH_DIRECT, bufferPointer, (UInt32)bufferSize,
bufferPointer, (UInt32)bufferSize, out UInt32 bytesReturned, IntPtr.Zero) && (bytesReturned > 0);
if (ioresult)
{
sptw.sptBuffered = (ScsiPassThroughBuffered)Marshal.PtrToStructure(bufferPointer, typeof(ScsiPassThroughBuffered));
}
}
finally
{
Marshal.FreeHGlobal(bufferPointer);
}
return(ioresult);
}
/// <summary>
/// Wrapper calling low level function DeviceIoControl
/// </summary>
/// <param name="sptw">scsi params</param>
/// <returns></returns>
public bool Ioctl(ScsiPassThroughWrapper sptw)
{
IntPtr bufferPointer = IntPtr.Zero;
bool ioresult = false;
try
{
Int32 bufferSize = Marshal.SizeOf(sptw.sptBuffered);
bufferPointer = Marshal.AllocHGlobal(bufferSize);
Marshal.StructureToPtr(sptw.sptBuffered, bufferPointer, true);
ioresult = DeviceIoControl(this.handle, (uint)IoctlCodes.IOCTL_SCSI_PASS_THROUGH_DIRECT, bufferPointer, (UInt32)bufferSize,
bufferPointer, (UInt32)bufferSize, out UInt32 bytesReturned, IntPtr.Zero) && (bytesReturned > 0);
if (ioresult)
{
sptw.sptBuffered = (ScsiPassThroughBuffered)Marshal.PtrToStructure(bufferPointer, typeof(ScsiPassThroughBuffered));
}
else
{
this.lastError = GetLastError();
}
}
catch (Exception e)
{
Console.WriteLine("IO Ctl FAIL: {0}", e.Message);
}
finally
{
Marshal.FreeHGlobal(bufferPointer);
}
return(ioresult);
}
public ScsiCommand(ScsiPassThroughWrapper sptw)
{
this.Sptw = sptw;
}