[PATCH v4 2/4] iio: Documentation: Add max9611 sysfs documentation

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Add documentation for max9611 driver.
Document attributes describing value of shunt resistor installed between
RS+ and RS- voltage sense inputs.

Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-bus-iio-adc-max9611 | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-max9611

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611 b/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611
new file mode 100644
index 0000000..5020d00
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-max9611
@@ -0,0 +1,17 @@
+What:		/sys/bus/iio/devices/iio:deviceX/in_power_shunt_resistor
+Date:		March 2017
+KernelVersion:	4.12
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description: 	The value of the shunt resistor used to compute power drain on
+                common input voltage pin (RS+). In micro Ohms.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_current_shunt_resistor
+Date:		March 2017
+KernelVersion:	4.12
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description: 	The value of the shunt resistor used to compute current flowing
+                between RS+ and RS- voltage sense inputs. In micro Ohms.
+
+These attributes describe a single physical component, exposed as two distinct
+attributes as it is used to calculate two different values: power load and
+current flowing between RS+ and RS- inputs.
-- 
2.7.4

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