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Hi!! If I comment out all of the set_control( param, param) calls, I get an error:

[uvc_camera-1] process has died [pid 3419, exit code -11, cmd /home/siml/roswk/uvc_camera_pkg/uvc_camera/bin/camera_node __name:=uvc_camera __log:=/home/siml/.ros/log/0cee0b5a-a2dc-11e2-9b3d-20cf3057401c/uvc_camera-1.log]. log file: /home/siml/.ros/log/0cee0b5a-a2dc-11e2-9b3d-20cf3057401c/uvc_camera-1*.log

more complete output:

..........

core service [/rosout] found Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading'="" from="" '="" usr="" lib="" python2.7="" threading.pyc'=""> ignored process[uvc_camera-1]: started with pid [3419] opening /dev/video0 pixfmt 0 = 'GRBG' desc = 'GRBG' discrete: 162x120:
discrete: 324x240:
int (Brightness, 0, id = 980900): 0 to 31 (1) int (Contrast, 0, id = 980901): 0 to 15 (1) int (Exposure, 0, id = 980911): 0 to 1023 (1) int (Gain, 0, id = 980913): 0 to 255 (1) [uvc_camera-1] process has died [pid 3419, exit code -11, cmd /home/siml/roswk/uvc_camera_pkg/uvc_camera/bin/camera_node __name:=uvc_camera __log:=/home/siml/.ros/log/0cee0b5a-a2dc-11e2-9b3d-20cf3057401c/uvc_camera-1.log]. log file: /home/siml/.ros/log/0cee0b5a-a2dc-11e2-9b3d-20cf3057401c/uvc_camera-1*.log all processes on machine have died, roslaunch will exit shutting down processing monitor... ... shutting down processing monitor complete done

any ideas?