{"action":"opened","issue":{"url":"https://api.github.com/repos/clearpathrobotics/robot_upstart/issues/15","labels_url":"https://api.github.com/repos/clearpathrobotics/robot_upstart/issues/15/labels{/name}","comments_url":"https://api.github.com/repos/clearpathrobotics/robot_upstart/issues/15/comments","events_url":"https://api.github.com/repos/clearpathrobotics/robot_upstart/issues/15/events","html_url":"https://github.com/clearpathrobotics/robot_upstart/issues/15","id":56015295,"number":15,"title":"[Question] Why execute with setuidgid","user":{"login":"pando85","id":4646670,"avatar_url":"https://avatars.githubusercontent.com/u/4646670?v=3","gravatar_id":"","url":"https://api.github.com/users/pando85","html_url":"https://github.com/pando85","followers_url":"https://api.github.com/users/pando85/followers","following_url":"https://api.github.com/users/pando85/following{/other_user}","gists_url":"https://api.github.com/users/pando85/gists{/gist_id}","starred_url":"https://api.github.com/users/pando85/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pando85/subscriptions","organizations_url":"https://api.github.com/users/pando85/orgs","repos_url":"https://api.github.com/users/pando85/repos","events_url":"https://api.github.com/users/pando85/events{/privacy}","received_events_url":"https://api.github.com/users/pando85/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-01-30T10:09:53Z","updated_at":"2015-01-30T10:09:53Z","closed_at":null,"body":"Hi, I'm using this fantastic node with my robot.\r\nFirst of all, thanks, I like it too much.\r\nWhy do you use the command *setuidgid* to launch the roslaunch?\r\n\r\nI use a user with groups added like video and dialout to have access the camara of my device (raspberry pi camera) and serial port.\r\nI have to add dialout to main group and then I give privileges to dialout to access camera with:\r\n```bash\r\n$ echo 'SUBSYSTEM==\"vchiq\",GROUP=\"dialout\",MODE=\"0660\"' > /etc/udev/rules.d/10-vchiq-permissions.rules\r\n```\r\nBut I think that doing this is very bad habit. How could it be done better?\r\n\r\nWhy don't you use just the command *su*?\r\n\r\nThanks for your time,\r\nPando"}}