static PyObject * i2c_read_msg(PyObject *self, PyObject *args)
{
/* parameters */
struct as_i2c_device *aDev;
uint8_t *aWData;
int aWriteSize;
uint8_t RData[MAX_DATA_SIZE];
int aReadSize;
int ret;
/* Get arguments */
if (!PyArg_ParseTuple(args, "ls#i", (long *)&aDev,
(unsigned char *)&aWData, &aWriteSize,
&aReadSize)) {
PyErr_SetString(PyExc_IOError,
"Wrong parameters.");
return NULL;
}
if (aReadSize > MAX_DATA_SIZE) {
PyErr_SetString(PyExc_IOError,
"Read size too high");
return NULL;
}
ret = as_i2c_read_msg(aDev, aWData, aWriteSize, RData, aReadSize);
if (ret < 0) {
PyErr_SetString(PyExc_IOError,
"Can't forge read message");
return NULL;
}
return Py_BuildValue("s#", (unsigned char *)RData, aReadSize);
}
long AsI2c::readMsg(unsigned char *aWData, unsigned char aWriteSize, unsigned char *aRData, size_t aReadSize)
{
if (mDev != NULL)
{
return as_i2c_read_msg(mDev, aWData, aWriteSize, aRData, aReadSize);
}
else
{
std::cerr<<"AsI2c device structure not allocated"<<std::endl;
return -1;
}
}
