Hi all, new bee to ROS,
I am following [libucv](http://wiki.ros.org/action/fullsearch/libuvc_camera?action=fullsearch&context=180&value=linkto%3A%22libuvc_camera%22), trying to run my webcam and publish to /camera/image_raw topic. Catkin_make is ok. but when I launch. I got permission denied opening errors like:
PARAMETERS
* /camera/mycam/auto_exposure: 3
* /camera/mycam/auto_white_balance: False
* /camera/mycam/camera_info_url: file:///tmp/cam.yaml
* /camera/mycam/frame_rate: 15
* /camera/mycam/height: 480
* /camera/mycam/index: 1
* /camera/mycam/product: 0x0
* /camera/mycam/serial:
* /camera/mycam/timestamp_method: start
* /camera/mycam/vendor: 0x0
* /camera/mycam/video_mode: uncompressed
* /camera/mycam/width: 640
* /rosdistro: indigo
* /rosversion: 1.11.13
NODES
/camera/
mycam (libuvc_camera/camera_node)
ROS_MASTER_URI=http://localhost:11311
core service [/rosout] found
process[camera/mycam-1]: started with pid [12166]
**[ERROR] [1445862646.193876279]: Permission denied opening /dev/bus/usb/001/002**
[camera/mycam-1] process has died [pid 12166, exit code 255, cmd /home/visioner/libuvc_ws/devel/lib/libuvc_camera/camera_node __name:=mycam __log:=/home/visioner/.ros/log/f0455380-7b93-11e5-a62a-e4f89ca8e3f5/camera-mycam-1.log].
log file: /home/visioner/.ros/log/f0455380-7b93-11e5-a62a-e4f89ca8e3f5/camera-mycam-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
any ideas about this?
I am pretty sure my cameras are OK, I could find in `ls /dev/video*` , I even write a simple opencv program showing that I can get my camera run.
Any ideas about this? Thanks!
↧
