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SubjectRe: [PATCH 2/2] iio: Documentation: Add ina2xx shunt_resistor attribute documentation
On Mon, 17 Jul 2017 01:34:10 +0200
Stefan Brüns <stefan.bruens@rwth-aachen.de> wrote:

> The ina2xx driver appeared in the Linux kernel version 4.5, but provided
> no documentation. Contrary to other uses of resistance in IIO, ina2xx uses
> microohms instead of ohms in the sysfs attribute.
>
> Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
This has me confused. The documentation is already
there and lists it as being in ohms.

Ah, subtle filename difference. Docs in are
Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc

This attribute effectively exists for other parts
as well now.

Jonathan
> ---
> Documentation/ABI/testing/sysfs-bus-iio-adc-ina2xx-adc | 7 +++++++
> 1 file changed, 7 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ina2xx-adc
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ina2xx-adc b/Documentation/ABI/testing/sysfs-bus-iio-adc-ina2xx-adc
> new file mode 100644
> index 000000000000..9525098f6822
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ina2xx-adc
> @@ -0,0 +1,7 @@
> +What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistor
> +Date: December 2015
> +KernelVersion: 4.5
> +Contact: linux-iio@vger.kernel.org
> +Description: The value of the shunt resistor connected to the V_IN+ and V_IN-
> + inputs, used to compute the current flowing through the shunt and
> + the corresponding power. In microohms.

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