driverlib.py 文件源码

def send_ioctl(self, ioctl, inbuf, inbufsiz, outbuf, outbufsiz):
        """See: DeviceIoControl function
        http://msdn.microsoft.com/en-us/library/aa363216(v=vs.85).aspx
        """
        DeviceIoControl_Fn = windll.kernel32.DeviceIoControl
        DeviceIoControl_Fn.argtypes = [
                wintypes.HANDLE,                    # _In_          HANDLE hDevice
                wintypes.DWORD,                     # _In_          DWORD dwIoControlCode
                wintypes.LPVOID,                    # _In_opt_      LPVOID lpInBuffer
                wintypes.DWORD,                     # _In_          DWORD nInBufferSize
                wintypes.LPVOID,                    # _Out_opt_     LPVOID lpOutBuffer
                wintypes.DWORD,                     # _In_          DWORD nOutBufferSize
                LPDWORD,                            # _Out_opt_     LPDWORD lpBytesReturned
                LPOVERLAPPED]                       # _Inout_opt_   LPOVERLAPPED lpOverlapped
        DeviceIoControl_Fn.restype = wintypes.BOOL
        print ioctl
        # allocate a DWORD, and take its reference
        dwBytesReturned = wintypes.DWORD(0)
        lpBytesReturned = ctypes.byref(dwBytesReturned)
        status = DeviceIoControl_Fn(self.handle,
                      ioctl,
                      inbuf,
                      inbufsiz,
                      outbuf,
                      outbufsiz,
                      lpBytesReturned,
                      None)

        return status, dwBytesReturned