Add ABI documentation for in_*_mean_raw files, which are
already supported and used in the kernel for some time.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 Description:
                Scaled humidity measurement in milli percent.
 
+What:          /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
+KernelVersion: 3.5
+Contact:       linux-iio@vger.kernel.org
+Description:
+               Averaged raw measurement from channel X. The number of values
+               used for averaging is device specific. The converting rules for
+               normal raw values also applies to the averaged raw values.
+
 What:          /sys/bus/iio/devices/iio:deviceX/in_accel_offset
 What:          /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
 What:          /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset