linux-kernel - Re: [RFC PATCH v1 0/9] iio: Expand IIO event interface for real-world unit handling

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Message-ID: <2f9e7172885c5dd20be198f013283c6ec0513ef1.camel@gmail.com>
Date: Wed, 21 Jan 2026 09:33:16 +0000
From: Nuno Sá <noname.nuno@...il.com>
To: David Lechner <dlechner@...libre.com>, Marcelo Schmitt
	 <marcelo.schmitt1@...il.com>, linux-iio@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Cc: jic23@...nel.org, Jonathan.Cameron@...wei.com, nuno.sa@...log.com, 
	andy@...nel.org
Subject: Re: [RFC PATCH v1 0/9] iio: Expand IIO event interface for
 real-world unit handling

On Sun, 2026-01-18 at 14:33 -0600, David Lechner wrote:
> On 1/18/26 12:18 PM, Marcelo Schmitt wrote:
> > This patch set adjusts and complements the IIO event ABI docs making them
> > coherent with the fact that not all threshold value attributes had a _raw/_input
> > indicator set in their names. In addition that, the latter patches on this
> > series update the IIO event infrastructure to actually enable drivers to provide
> > _input threshold value attributes.
> 

... 

> 
> Just throwing out an idea here without thinking about it too much...
> 
> Instead of adding a new field/parameter for units, could we extend
> enum iio_event_info to add IIO_EV_INFO_VALUE_RAW and IIO_EV_INFO_VALUE_INPUT
> (and same for HYSTERESIS). Really, the units only make sense for these
> two info types anyway.
> 

Makes sense to me.  Or we can just document that the old value is _INPUT? Or just make
it the same value in the enum.

- Nuno Sá