static PyObject * i2c_read_reg(PyObject *self, PyObject *args)
{
/* parameters */
struct as_i2c_device *aDev;
uint8_t aReg;
uint8_t aData[MAX_DATA_SIZE];
int aSize;
int ret;
/* Get arguments */
if (!PyArg_ParseTuple(args, "lii", (long *)&aDev, &aReg, &aSize)) {
PyErr_SetString(PyExc_IOError,
"Wrong parameters.");
return NULL;
}
if (aSize > MAX_DATA_SIZE) {
PyErr_SetString(PyExc_IOError,
"Size too high");
return NULL;
}
ret = as_i2c_read_reg(aDev, aReg, aData, aSize);
if (ret < 0) {
PyErr_SetString(PyExc_IOError,
"Can't get slave address");
return NULL;
}
return Py_BuildValue("s#", (unsigned char *)aData, aSize);
}
long AsI2c::readReg(unsigned char aReg, unsigned char *aData, size_t aSize) const
{
if (mDev != NULL)
{
return as_i2c_read_reg(mDev, aReg, aData, aSize);
}
else
{
std::cerr<<"AsI2c device structure not allocated"<<std::endl;
return -1;
}
}
int ApfI2cWithMd25::readRegisterbyte(struct as_i2c_device *aDev, unsigned char reg, unsigned char *data)
{
lock();
int ret = 0;
//ret = as_i2c_read_reg(fd_, adr, reg, data, 1); //return 0 on success, -1 on write error (\e reg byte), -2 on read error.
ret = as_i2c_read_reg(aDev, reg, data, 1);
if (ret < 0)
{
//errorCount_++;
if (ret == -1)
std::cout << "as_i2c_read_reg_byte: reg " << (int) reg << " WRITE error!" << std::endl;
if (ret == -2)
std::cout << "as_i2c_read_reg_byte: reg " << (int) reg << " READ error!" << std::endl;
exit(1);
}
else
{
//errorCount_ = 0;
}
unlock();
return ret;
}