Bayer pattern [ (4)] is invalid

[fabrizioschiano]

Hi, I am using a Flea camera and I am launching the following launch file:

<!-- -*- mode: XML -*- -->

<!-- Start the driver for a specific IEEE1394 digital camera.

     this is a test script: NOT FOR GENERAL USE

     arg: camera = base file name of camera YAML parameters
                   (default: unibrain)
-->

<launch>

  <arg name="camera" default="flea" />

  <node pkg="camera1394" type="camera1394_node" name="camera1394_node" >
<rosparam
       file="configCamera.yaml" /> 

<param name="guid" value="00b09d0100ea9271" />
<param name="video_mode" value="format7_mode1" />

  </node>
</launch>

I would like to know why I get the warning
[ WARN] [1522048449.989425952]: Bayer pattern [ (4)] is invalid.

Thanks in advance

NODES
  /
    camera1394_node (camera1394/camera1394_node)

ROS_MASTER_URI=http://SCHIANO-UBUNTU:11311

process[camera1394_node-1]: started with pid [13628]
[ WARN] [1522048449.912873984]: Comparing 00b09d0100ea9271 to 00b09d0100ea9271
[ INFO] [1522048449.986876608]: Found camera with GUID 00b09d0100ea9271
[ INFO] [1522048449.987260096]: camera model: Point Grey Research Flea3 FL3-U3-32S2M
[ WARN] [1522048449.989425952]: Bayer pattern [ (4)] is invalid.

[fabrizioschiano]

If I set:

<param name="bayer_method" value=""/>
<param name="bayer_pattern" value=""/>

I still have the same warning.