参数1：<class'typeerror'=“”>：错误的类型

Question

我正在尝试运行以下代码，并且在dll中，它定义为

（unsigned char * ReadAndWriteToDevice（unsigned char InputReport1，unsigned     char OutputReport1，int DevDet）;）

adcdll = cdll.LoadLibrary("adcDLL1.dll")

When I run this code, 

DvDetect = c_ubyte(0)
adcdll.DevDetect(pointer(DvDetect))

OutputReport1 = numpy.ndarray(shape=70, dtype= 'B')
InputReport1 = numpy.ndarray(shape=70, dtype= 'B')

adcdll_ReadAndWriteToDevice = adcdll.ReadAndWriteToDevice
adcdll_ReadAndWriteToDevice.argtypes = [c_char_p,c_char_p, c_int]
adcdll_ReadAndWriteToDevice.restype = c_char_p

OutputReport1[1] = 0xF1
adcdll.ReadAndWriteToDevice(InputReport1,OutputReport1,1)


It give me the error
argument 1: <class 'TypeError'>: wrong type