Starting p3dx using p2os

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Hi, I am following the tutorials in http://www.ros.org/wiki/p2os/Tutorials/Getting%20Started%20with%20p2os

I have only one laptop mounted on the robot (p3dx) hence i am not following the 7th and 8th section of the above mentioned tutorial.

When i run the

rosrun p2os_dashboard p2os_dashboard

i see the dashboard getting displayed but except the Rosout (in green) ui others are not colored (red/green) and the battery is 0% even though the robot is fully charged. I am not able to enable or disable the motors. I see the problem is here itself.

And when i run the

rosrun p2os_drivers p2os

i get the following errors.

[ INFO] [1323459143.327099680]: using serial port: [/dev/ttyS0]
[ INFO] [1323459143.360479690]: P2OS connection opening serial port /dev/ttyS0...
[ERROR] [1323459143.360617485]: P2OS::Setup():tcgetattr():
[ERROR] [1323459143.360707540]: p2os setup failed...

I have given the read and write permissions to ttyS* and ttyUSB*. I am able to use ROSARIA and get the robot moving using keyboard operations. I am sure something is being missed. Pls let me know

Thanks, Karthik