From 02770fcb7b365e9927564655bcaca14a32033fce Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Wed, 28 Aug 2019 23:21:25 +0200
Subject: [PATCH] docs: Document gpio.ADC for 1.9

Signed-off-by: Rahix <rahix@rahix.de>
---
 Documentation/pycardium/gpio.rst | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/pycardium/gpio.rst b/Documentation/pycardium/gpio.rst
index 7d17b3fd..28854d14 100644
--- a/Documentation/pycardium/gpio.rst
+++ b/Documentation/pycardium/gpio.rst
@@ -52,7 +52,7 @@ output in your scripts.
    :returns: Current value of the GPIO pin.
       If the pin is configured as ADC, the value returned
       will be between 0 and 1000, representing voltages from
-      0V to 3.3V
+      0V to 3.3V (:py:data:`gpio.ADC` is only available in 1.9+).
 
 .. py:data:: WRISTBAND_1
 
@@ -81,6 +81,12 @@ output in your scripts.
 
    Configures a pin as input.
 
+.. py:data:: ADC
+
+   Configure pin as ADC input.
+
+   .. versionadded: 1.9
+
 .. py:data:: PULL_UP
 
    Enables the internal pull-up resistor of a pin.
-- 
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