linux-kernel - Re: [PATCH 1/2] iio: humditiy: hdc3020: fix units for temperature and humidity measurement

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Message-ID: <aKc-2WHDTtGcXmCJ@smile.fi.intel.com>
Date: Thu, 21 Aug 2025 18:44:25 +0300
From: Andy Shevchenko <andriy.shevchenko@...el.com>
To: dimitri.fedrau@...bherr.com
Cc: Javier Carrasco <javier.carrasco.cruz@...il.com>,
	Li peiyu <579lpy@...il.com>, Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>,
	Dimitri Fedrau <dima.fedrau@...il.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	Chris Lesiak <chris.lesiak@...orbio.com>
Subject: Re: [PATCH 1/2] iio: humditiy: hdc3020: fix units for temperature
 and humidity measurement

On Thu, Aug 21, 2025 at 05:23:54PM +0200, Dimitri Fedrau via B4 Relay wrote:
> From: Dimitri Fedrau <dimitri.fedrau@...bherr.com>
> 
> According to the ABI the units after application of scale and offset are
> milli degrees for temperature measurements and milli percent for relative
> humidity measurements. Change scale factor to fix this issue.

...

>  		if (chan->type == IIO_TEMP)
> -			*val = 175;
> +			*val = 175000;
>  		else
> -			*val = 100;
> +			*val = 100000;

Perhaps  use " * MILL" uin both cases?

-- 
With Best Regards,
Andy Shevchenko