2023-11-15 13:26:05

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH v2 2/4] hwmon: (core) Add support for humidity min/max alarm

On Thu, Nov 09, 2023 at 07:24:00AM +0100, Javier Carrasco wrote:
> Hello,
>
> On 09.11.23 01:02, Guenter Roeck wrote:
> > On 11/8/23 07:37, Javier Carrasco wrote:
> >> Add min_alarm and max_alarm attributes for humidityX to support devices
> >> that can generate these alarms.
> >> Such attributes already exist for other magnitudes such as tempX.
> >>
> >> Tested with a ChipCap 2 temperature-humidity sensor.
> >>
> >
> > No objection, but the new attributes also need to be added to the ABI
> > documentation at
> > Documentation/ABI/testing/sysfs-class-hwmon and
> > Documentation/hwmon/sysfs-interface.rst
> >
> > Which made me notice that humidityX_alarm isn't documented either.
> > Please document that attribute as well while you are at it.
> >
> > Thanks,
> > Guenter
> >
> Actually there are several attributes without ABI documentation or at
> least the attributes enum is much larger than the objects in the ABI
> documentation (in testing/sysfs-class-hwmon).
> For humidity there is only input, enable, rated_min and rated_max. Are
> some attributes not described for a good reason or should all be
> documented? the current humidity_attributes contains:
>
> hwmon_humidity_enable -> documented in sysfs-class-hwmon
> hwmon_humidity_input -> documented in sysfs-class-hwmon
> hwmon_humidity_label
> hwmon_humidity_min
> hwmon_humidity_min_hyst
> hwmon_humidity_max
> hwmon_humidity_max_hyst
> hwmon_humidity_alarm
> hwmon_humidity_fault
> hwmon_humidity_rated_min -> documented in sysfs-class-hwmon
> hwmon_humidity_rated_max -> documented in sysfs-class-hwmon
>
> I could not find the temperature counterparts of my new additions
> (temp_min_alarm and temp_max_alarm).
>
> Should all be added to sysfs-class-hwmon or am I missing some other
> document? I am alright adding the ones I mentioned.
>

They should all be documented. It would be great if you volunteer
to add the missing ones, but that won't be a mandate. I just don't want
the situation to get worse.

Thanks,
Guenter


2023-11-15 13:57:10

by Javier Carrasco

[permalink] [raw]
Subject: Re: [PATCH v2 2/4] hwmon: (core) Add support for humidity min/max alarm

On 15.11.23 14:25, Guenter Roeck wrote:
> On Thu, Nov 09, 2023 at 07:24:00AM +0100, Javier Carrasco wrote:
>> Hello,
>>
>> On 09.11.23 01:02, Guenter Roeck wrote:
>>> On 11/8/23 07:37, Javier Carrasco wrote:
>>>> Add min_alarm and max_alarm attributes for humidityX to support devices
>>>> that can generate these alarms.
>>>> Such attributes already exist for other magnitudes such as tempX.
>>>>
>>>> Tested with a ChipCap 2 temperature-humidity sensor.
>>>>
>>>
>>> No objection, but the new attributes also need to be added to the ABI
>>> documentation at
>>> Documentation/ABI/testing/sysfs-class-hwmon and
>>> Documentation/hwmon/sysfs-interface.rst
>>>
>>> Which made me notice that humidityX_alarm isn't documented either.
>>> Please document that attribute as well while you are at it.
>>>
>>> Thanks,
>>> Guenter
>>>
>> Actually there are several attributes without ABI documentation or at
>> least the attributes enum is much larger than the objects in the ABI
>> documentation (in testing/sysfs-class-hwmon).
>> For humidity there is only input, enable, rated_min and rated_max. Are
>> some attributes not described for a good reason or should all be
>> documented? the current humidity_attributes contains:
>>
>> hwmon_humidity_enable -> documented in sysfs-class-hwmon
>> hwmon_humidity_input -> documented in sysfs-class-hwmon
>> hwmon_humidity_label
>> hwmon_humidity_min
>> hwmon_humidity_min_hyst
>> hwmon_humidity_max
>> hwmon_humidity_max_hyst
>> hwmon_humidity_alarm
>> hwmon_humidity_fault
>> hwmon_humidity_rated_min -> documented in sysfs-class-hwmon
>> hwmon_humidity_rated_max -> documented in sysfs-class-hwmon
>>
>> I could not find the temperature counterparts of my new additions
>> (temp_min_alarm and temp_max_alarm).
>>
>> Should all be added to sysfs-class-hwmon or am I missing some other
>> document? I am alright adding the ones I mentioned.
>>
>
> They should all be documented. It would be great if you volunteer
> to add the missing ones, but that won't be a mandate. I just don't want
> the situation to get worse.
>
> Thanks,
> Guenter

I will document them in a separate series, so the (probably) long review
of the original device driver will not have any effect on this task,
which has nothing to do with the ChipCap 2 anyways.
I will start asap.

Best regards,
Javier Carrasco