adding user info

src/drivers/camera_trigger/camera_trigger.cpp

@@ -482,9 +482,11 @@ int camera_trigger_main(int argc, char *argv[])
 		if (argc >= 3) {
 			if (!strcmp(argv[2], "--relay")) {
 				camera_trigger::g_camera_trigger = new CameraTrigger(CAMERA_INTERFACE_MODE_RELAY);
+				warnx("started with camera interface mode : relay");
 
 			} else if (!strcmp(argv[2], "--pwm")) {
 				camera_trigger::g_camera_trigger = new CameraTrigger(CAMERA_INTERFACE_MODE_PWM);
+				warnx("started with camera interface mode : pwm");
 
 			} else {
 				usage();

src/drivers/camera_trigger/interfaces/src/pwm.cpp

@@ -117,3 +117,8 @@ int CameraInterfacePWM::powerOff()
 
 	return 0;
 }
+
+void CameraInterfaceRelay::info()
+{
+	warnx("PWM - camera triggering, pins 1-3 : %d,%d,%d", _pins[0], _pins[1], _pins[2]);
+}

src/drivers/camera_trigger/interfaces/src/pwm.h

@@ -36,6 +36,8 @@ public:
 	int powerOn();
 	int powerOff();
 
+	void info();
+
 	int _pins[6];
 private:
 	void setup();

src/drivers/camera_trigger/interfaces/src/relay.cpp

@@ -72,6 +72,6 @@ void CameraInterfaceRelay::trigger(bool enable)
 
 void CameraInterfaceRelay::info()
 {
-	warnx("pins 1-3 : %d,%d,%d polarity : %s", _pins[0], _pins[1], _pins[2],
+	warnx("Relay - camera triggering, pins 1-3 : %d,%d,%d polarity : %s", _pins[0], _pins[1], _pins[2],
 	      _polarity ? "ACTIVE_HIGH" : "ACTIVE_LOW");
 }