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diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933 b/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933
new file mode 100644
index 00000000000..79c7e88c64c
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+++ b/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933
@@ -0,0 +1,30 @@
+What:           /sys/bus/iio/devices/iio:deviceX/outY_freq_start
+KernelVersion:  3.1.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Frequency sweep start frequency in Hz.
+
+What:           /sys/bus/iio/devices/iio:deviceX/outY_freq_increment
+KernelVersion:  3.1.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Frequency increment in Hz (step size) between consecutive
+                frequency points along the sweep.
+
+What:           /sys/bus/iio/devices/iio:deviceX/outY_freq_points
+KernelVersion:  3.1.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Number of frequency points (steps) in the frequency sweep.
+                This value, in conjunction with the outY_freq_start and the
+                outY_freq_increment, determines the frequency sweep range
+                for the sweep operation.
+
+What:           /sys/bus/iio/devices/iio:deviceX/outY_settling_cycles
+KernelVersion:  3.1.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Number of output excitation cycles (settling time cycles)
+                that are allowed to pass through the unknown impedance,
+                after each frequency increment, and before the ADC is triggered
+                to perform a conversion sequence of the response signal.