From c04d23645c60ffbe959ead6460c3bca2d0077224 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lorenz@px4.io>
Date: Sat, 13 Feb 2021 19:01:58 +0100
Subject: [PATCH] IO: Fix reverse mapping The reverse mapping was off-by-one in
 the IO driver.

---
 src/drivers/px4io/px4io.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index 370c0755f8..01439fc45e 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -1329,7 +1329,7 @@ void PX4IO::update_params()
 
 			if (param_get(param_find(str), &pwm_rev) == PX4_OK) {
 				if (pwm_rev >= 1) {
-					reverse_pwm_mask |= (2 << i);
+					reverse_pwm_mask |= (1 << i);
 				}
 
 			}