From 45f6b16dec72dfacc7fb0c42e9152d10fd482e72 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Wed, 4 Aug 2021 10:24:17 +1000
Subject: [PATCH] AP_RPM: fixed formatting of pin arming check

---
 libraries/AP_RPM/AP_RPM.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/AP_RPM/AP_RPM.cpp b/libraries/AP_RPM/AP_RPM.cpp
index 59008aef71..f7cdcdc7ab 100644
--- a/libraries/AP_RPM/AP_RPM.cpp
+++ b/libraries/AP_RPM/AP_RPM.cpp
@@ -235,7 +235,7 @@ bool AP_RPM::arming_checks(size_t buflen, char *buffer) const
                 return false;
             }
             if (!hal.gpio->valid_pin(_pin[i])) {
-                hal.util->snprintf(buffer, buflen, "RPM[%u] pin %d invalid", i + 1, _pin[i]);
+                hal.util->snprintf(buffer, buflen, "RPM[%u] pin %d invalid", unsigned(i + 1), int(_pin[i].get()));
                 return false;
             }
             break;