Re: [PATCH v4 1/1] Documentation: iio: Add ADC documentation

[David Lechner]

On 2/19/25 3:00 PM, Marcelo Schmitt wrote:
> ADC inputs can be classified into a few different types according to how
> they measure the input signal, how restrained the signal is, and number of
> input pins. Even though datasheets tend to provide many details about their
> inputs and measurement procedures, it may not always be clear how to model
> those inputs into IIO channels.
> 
> For example, some differential ADCs can have their inputs configured into
> pseudo-differential channels. In that configuration, only one input
> connects to the signal of interest as opposed to using two inputs of a
> differential input configuration. Datasheets sometimes also refer to
> pseudo-differential inputs as single-ended inputs even though they have
> distinct physical configuration and measurement procedure.
> 
> Document consolidated ADC input types and how they are usually described
> and supported in device tree and IIO, respectively.
> 
> Signed-off-by: Marcelo Schmitt <marcelo.schmitt@xxxxxxxxxx>
> ---
Reviewed-by: David Lechner <dlechner@xxxxxxxxxxxx>