On Sat, 13 Aug 2022 01:34:40 +0300
Andy Shevchenko [off-list ref] wrote:

On Fri, Aug 12, 2022 at 7:52 PM Dmitry Rokosov [off-list ref] wrote:

quoted

MSA311 is a tri-axial, low-g accelerometer with I2C digital output for
sensitivity consumer applications. It has dynamic user-selectable full
scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements
with output data rates from 1Hz to 1000Hz.  

quoted

Spec: https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf  

Can you use Datasheet: tag below (just before your SoB tag)?

quoted

This driver supports following MSA311 features:
    - IIO interface
    - Different power modes: NORMAL and SUSPEND (using pm_runtime)
    - ODR (Output Data Rate) selection
    - Scale and samp_freq selection
    - IIO triggered buffer, IIO reg access
    - NEW_DATA interrupt + trigger

Below features to be done:
    - Motion Events: ACTIVE, TAP, ORIENT, FREEFALL
    - Low Power mode  

...

quoted

+static const struct {
+       int val;
+       int val2;
+} msa311_fs_table[] = {
+       {0, 9580}, {0, 19160}, {0, 38320}, {0, 76641}
+};  

At least you may deduplicate the type definition for these data structures, like

struct iio_float {

iio_int_plus_micro maybe...
we have lots of fixed point types and they definitely are floats
then integer, micro

  int integer;
  int fract;
};