From 87b2375be436aa92d361e0131be9ff63ae43fe36 Mon Sep 17 00:00:00 2001
From: Holger Steinhaus <holger@steinhaus-home.de>
Date: Tue, 26 Aug 2014 14:34:14 +0200
Subject: Ignore single channels during PWM output

---
 src/modules/px4iofirmware/registers.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/modules/px4iofirmware/registers.c')

diff --git a/src/modules/px4iofirmware/registers.c b/src/modules/px4iofirmware/registers.c
index 43161aa70..0da778b6f 100644
--- a/src/modules/px4iofirmware/registers.c
+++ b/src/modules/px4iofirmware/registers.c
@@ -285,7 +285,9 @@ registers_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num
 		while ((offset < PX4IO_CONTROL_CHANNELS) && (num_values > 0)) {
 
 			/* XXX range-check value? */
-			r_page_servos[offset] = *values;
+			if (*values != PWM_IGNORE_THIS_CHANNEL) {
+				r_page_servos[offset] = *values;
+			}
 
 			offset++;
 			num_values--;
-- 
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