On Thu, 22 May 2025 15:27:02 +0200
Angelo Dureghello <adureghello@baylibre.com> wrote:
> From: Angelo Dureghello <adureghello@baylibre.com>
>
> Add new IIO calibconv_delay documentation.
This has all gotten somewhat confused. What are we actually using?
>
> The ad7606 implements a phase calibation feature, in nanoseconds.
> Being this a time delay, using the conv_delay suffix.
This being a time delay, use the convdelay suffix.
>
> Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
> ---
> Documentation/ABI/testing/sysfs-bus-iio | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> index ef52c427a015cf47bb9847782e13afbee01e9f31..cd79c036b2ccdea016dcc17f4e8ac5fdb2d0e465 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio
> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> @@ -559,6 +559,30 @@ Description:
> - a small discrete set of values like "0 2 4 6 8"
> - a range specified as "[min step max]"
>
> +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay
> +KernelVersion: 6.16
> +Contact: linux-iio@vger.kernel.org
> +Description:
> + Delay of start of conversion from common reference point shared
> + by all channels. Can be writable when used to compensate for
> + delay variation introduced by external filters feeding a
> + simultaneous sampling ADC.
> +
> + I.e., for the ad7606 ADC series, this value is intended as a
E.g. more appropriate than I.e. as an example, not a 'What we mean is'..
> + configurable time delay in seconds, to correct delay introduced
> + by an optional external filtering circuit.
> +
> +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay_available
> +KernelVersion: 6.16
> +Contact: linux-iio@vger.kernel.org
> +Description:
> + Available values of convdelay. Maybe expressed as:
> +
> + - a range specified as "[min step max]"
> +
> + If shared across all channels, <type>_calibconv_delay_available
It's not called that any more.
> + is used.
> +
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
>