From f2a8a13dbad220cfb0dfbd72a90492a15a2e58bb Mon Sep 17 00:00:00 2001
From: dexter93 <d3xter93@gmail.com>
Date: Thu, 8 Dec 2022 18:09:01 +0200
Subject: Core: Support inverted scan logic for optical switches (#19053)

---
 docs/porting_your_keyboard_to_qmk.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'docs')

diff --git a/docs/porting_your_keyboard_to_qmk.md b/docs/porting_your_keyboard_to_qmk.md
index 484d079ea6..05054e25c7 100644
--- a/docs/porting_your_keyboard_to_qmk.md
+++ b/docs/porting_your_keyboard_to_qmk.md
@@ -94,6 +94,18 @@ The next section of the `info` file deals with your keyboard's matrix. The first
 
 The size of the `matrix_pins.cols` and `matrix_pins.rows` arrays infer the size of the matrix (previously `MATRIX_ROWS` and `MATRIX_COLS`). 
 
+## Configuration Options
+
+To invert the keypress logic, configure `input_pressed_state`:
+
+```json
+    "matrix_pins": {
+        "input_pressed_state": 1,
+},
+```
+
+This configures state of the GPIO pins when the key is pressed - `1` for high, `0` for low. Default value is `0`.
+
 Finally, you can specify the direction your diodes point. This can be `COL2ROW` or `ROW2COL`.
 
 ```json
-- 
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