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-rw-r--r--src/modules/px4iofirmware/protocol.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/modules/px4iofirmware/protocol.h b/src/modules/px4iofirmware/protocol.h
index a3e8a58d3..9b2e047cb 100644
--- a/src/modules/px4iofirmware/protocol.h
+++ b/src/modules/px4iofirmware/protocol.h
@@ -221,6 +221,7 @@ enum { /* DSM bind states */
hence index 12 can safely be used. */
#define PX4IO_P_SETUP_RC_THR_FAILSAFE_US 13 /**< the throttle failsafe pulse length in microseconds */
+#define PX4IO_P_SETUP_FORCE_SAFETY_ON 14 /* force safety switch into 'disarmed' (PWM disabled state) */
#define PX4IO_FORCE_SAFETY_MAGIC 22027 /* required argument for force safety (random) */
/* autopilot control values, -10000..10000 */