From ebd16975d01b3a2200e94e164199b88527a27e3c Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 22 Sep 2013 11:30:37 +0200
Subject: [PATCH] An even number of bytes is when modulo 2 is zero, not modulo
 1 is one.

---
 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 f9fb9eea96..aca411b1e5 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -1509,7 +1509,7 @@ PX4IO::mixer_send(const char *buf, unsigned buflen, unsigned retries)
 			 * even.
 			 */
 			unsigned total_len = sizeof(px4io_mixdata) + count;
-			if (total_len % 1) {
+			if (total_len % 2) {
 				msg->text[count] = '\0';
 				total_len++;
 			}