MAG3110_CTRL_DR_SHIFT
int ret, i = data->ctrl_reg1 >> MAG3110_CTRL_DR_SHIFT;
i = data->ctrl_reg1 >> MAG3110_CTRL_DR_SHIFT;
data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT;
data->ctrl_reg1 = MAG3110_CTRL_DR_DEFAULT << MAG3110_CTRL_DR_SHIFT;