From 1480e0470e60f072ce2416b769adc389e0df828b Mon Sep 17 00:00:00 2001
From: faxe1008 <fabianblatz@gmail.com>
Date: Wed, 23 Aug 2023 14:42:24 +0200
Subject: [PATCH] docs(indev): add explanation for LV_INDEV_TYPE_BUTTON (#4478)

---
 docs/porting/indev.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/porting/indev.rst b/docs/porting/indev.rst
index 4699158d5..e66b1be2a 100644
--- a/docs/porting/indev.rst
+++ b/docs/porting/indev.rst
@@ -181,9 +181,12 @@ should look like ``const lv_point_t points_array[] = { {12,30},{60,90}, ...}``
           data->state = LV_INDEV_STATE_RELEASED; /*Set the released state*/
        }
 
-       data->btn = last_btn;            /*Save the last button*/
+       data->btn_id = last_btn;         /*Save the last button*/
    }
 
+When the ``button_read`` callback in the example above changes the ``data->btn_id`` to ``0``
+a press/release action at the first index of the ``points_array`` will be performed (``{12,30}``).
+
 Other features
 **************