Should increment `ch.chan_idx` instead of `channel_idx`,
otherwise we will be stucked in the loop forever.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

Print something to the shell when the `trig` command
completed successfully.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

Add a simple fake sensor driver so that the sample is more fun
for boards without real sensor.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

Use pytest to test the shell commands.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

The `SENSOR_CHAN_VSHUNT` was added in zephyrproject-rtos#60717 but was never
added to the `sensor_channel_name[SENSOR_CHAN_COMMON_COUNT]`
table. Since the length of `sensor_channel_name` is fixed to
`SENSOR_CHAN_COMMON_COUNT`, this means that the index at
`SENSOR_CHAN_VSHUNT` points to `NULL`. When we use the
`sensor get` command for anything bigger than
`SENSOR_CHAN_VSHUNT`, we will deref that `NULL` pointer
when we do `strcmp` in the for-loop of `parse_named_int`.

Fix this by defining `SENSOR_CHAN_VSHUNT` in the table.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

If `CONFIG_SENSOR_INFO` is enabled, use the `sensor_info`
section to validate that the argument is a sensor before using,
otherwise the shell command will hang the application.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

Update the pytest script to exercise the entire
`sensor_channel_name` table with `parse_named_int()`.

The `gauge_desired_charging_current` is selected because
it is the last one in the table before `all`, `all` is not
used because `sensor get sensor@0 all` doesn't return anything.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

As new channels are added to the `enum sensor_channel`, some
of the newer channel aren't updated in the whitelist of rtio
decoder.

Instead of specifying every channel in the list, do:
1. Verify that the `channel` is valid
2. cherry-pick the channels that require special handling, i.e.
   1. `three_axis_data`
   2. `byte_data`
   3. `uint64_data`
3. handle the remaining `channel` in the default case as
   `q31_data`

to make sure that all channels are handled.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>

Add `SENSOR_CHAN_POS_DXYZ` enum, and removed the redirection of
axis to axes so that we can get the axis value correctly, i.e.

```
sensor get <sensor> accel_y
```

Signed-off-by: Yong Cong Sin <ycsin@meta.com>