C# Signature:
[DllImport("coredll.dll", SetLastError=true)]
internal static extern bool KernelIoControl(int dwIoControlCode, byte[] inBuf, int inBufSize, byte[] outBuf, int outBufSize, ref int bytesReturned);
VB Signature:
Declare Function KernelIoControl Lib "coredll.dll" (TODO) As TODO
User-Defined Types:
None.
Alternative Managed API:
Do you know one? Please contribute it!
Notes:
Taken from openNetCF in OpenNETCF.Win32.Core
Tips & Tricks:
Please add some!
Sample Code:
C# code, A Sample of soft resetting the device:
#region declares for softreset (KernelIOControl)
// Control Code flags
private const uint FILE_DEVICE_UNKNOWN = 0x00000022;
private const uint FILE_DEVICE_HAL = 0x00000101;
private const uint FILE_DEVICE_CONSOLE = 0x00000102;
private const uint FILE_DEVICE_PSL = 0x00000103;
private const uint METHOD_BUFFERED = 0;
private const uint METHOD_IN_DIRECT = 1;
private const uint METHOD_OUT_DIRECT = 2;
private const uint METHOD_NEITHER = 3;
private const uint FILE_ANY_ACCESS = 0;
private const uint FILE_READ_ACCESS = 0x0001;
private const uint FILE_WRITE_ACCESS = 0x0002;
private static uint CTL_CODE(uint DeviceType, uint Function, uint Method, uint Access)
{
return ((DeviceType << 16) | (Access << 14) | (Function << 2) | Method);
}
/// <summary>
/// This function provides the kernel with a generic I/O control for
/// carrying out I/O operations.
/// </summary>
/// <param name="dwIoControlCode">I/O control code, which should support the
/// OAL I/O controls. For a list of these I/O controls, see Supported
/// OAL APIs.</param>
/// <param name="lpInBuf">Pointer to the input buffer.</param>
/// <param name="nInBufSize">Size, in bytes, of lpInBuf.</param>
/// <param name="lpOutBuf">Pointer to the output buffer.</param>
/// <param name="nOutBufSize">Maximum number of bytes that can be returned in
/// lpOutBuf.</param>
/// <param name="lpBytesReturned">Address of a DWORD that receives the size,
/// in bytes, of the data returned.</param>
/// <returns>TRUE indicates success; FALSE indicates failure.</returns>
[DllImport("Coredll.dll")]
private extern static uint KernelIoControl
(
uint dwIoControlCode,
IntPtr lpInBuf,
uint nInBufSize,
IntPtr lpOutBuf,
uint nOutBufSize,
ref uint lpBytesReturned
);
#endregion
/// <summary>
/// the method needed to be called to actually reset the device.
/// </summary>
public static void resetDevice()
{
uint bytesReturned = 0;
uint IOCTL_HAL_REBOOT = CTL_CODE(FILE_DEVICE_HAL, 15, METHOD_BUFFERED, FILE_ANY_ACCESS);
KernelIoControl(IOCTL_HAL_REBOOT, IntPtr.Zero, 0, IntPtr.Zero, 0, ref bytesReturned);
}
