when I run usb_cam_node in raspberry pi it does not bublish usb_cam/image_raw/theora
when i run the usb_cam usb_cam_node it does not publish /usb_cam/image_raw/theora as shown in below /usb_cam/camera_info /usb_cam/image_raw /usb_cam/image_raw/compressed /usb_cam/image_raw/compressed/parameter_descriptions /usb_cam/image_raw/compressed/parameter_updates /usb_cam/image_raw/compressedDepth /usb_cam/image_raw/compressedDepth/parameter_descriptions /usb_cam/image_raw/compressedDepth/parameter_updates
but when i run the same node in my laptop it publish following topics with usb_cam/image_raw/theora /usb_cam/camera_info /usb_cam/image_raw /usb_cam/image_raw/compressed /usb_cam/image_raw/compressed/parameter_descriptions /usb_cam/image_raw/compressed/parameter_updates /usb_cam/image_raw/compressedDepth /usb_cam/image_raw/compressedDepth/parameter_descriptions /usb_cam/image_raw/compressedDepth/parameter_updates /usb_cam/image_raw/theora /usb_cam/image_raw/theora/parameter_descriptions /usb_cam/image_raw/theora/parameter_updates
I could not find the error can some one help me....