From be6f6126f478898051a6507112bfdd3063c11bd1 Mon Sep 17 00:00:00 2001
From: David Sidrane <david_s5@nscdg.com>
Date: Wed, 12 Sep 2018 14:54:56 -0700
Subject: [PATCH] px4io:Add passive support for Enter/Exit pwm test mode

   Accept PWM_SERVO_[ENTER|EXIT]_TEST_MODE as a noop.
   As long as the mixer in passthrough and armed the
   pwm test will work.
---
 src/drivers/px4io/px4io.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index 67a6dc72ec..7cd7771be5 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -2745,6 +2745,10 @@ PX4IO::ioctl(file *filep, int cmd, unsigned long arg)
 			break;
 		}
 
+	case PWM_SERVO_SET_MODE:
+		ret = (arg == PWM_SERVO_ENTER_TEST_MODE || PWM_SERVO_EXIT_TEST_MODE) ? 0 : -EINVAL;
+		break;
+
 	case GPIO_RESET: {
 			ret = -EINVAL;
 			break;