| 
					
						 Hi,
  How do i stop gpsd from running, i was playing with firmata and arduino which needs the ttyUSB0 and I cannot connect to it . After hrs of head scratching, it appears gpsd was hogging the port. I kill the process but it runs again on its own after a while, so how do i stop it (and restart it if i wanted to).  All this business of ttyusb permission is rather confusing...like what is dialout, who got permission to use which port etc... what I want is command to find out whats what ports are available, what ports are free and what process is using which ports and how to do a simple confidence test on the port, not a lot to ask I know!   Would appreciate someone demystify the usb port thing.
  Thanks, Ken 
					
  
						
					 |