#!/bin/bash # $Id: usbcam.x11-app,v 1.2 2002/10/18 02:28:00 hun Exp $ # # /etc/hotplug/usb/usbcam # # Sets up newly plugged in USB camera so that just one certain user USER=root # can access it from user space. (Replace root by the user you want # to have access to the cameras.) # It then runs the X11 application (gtkam is used as an example) X11_APP=/usr/bin/gtkam # on the X11 display (:0 should work on most single user workstations) DISPLAY=:0 # in the directory (~$USER is just the user's home directory) DIRECTORY=~$USER # # Note that for this script to work, you'll need all of the following: # a) a line in the file /etc/hotplug/usermap that corresponds to the # camera you are using. You can get the correct lines for all cameras # supported by libgphoto2 by running "print-usb-usermap". # b) run your camera software as the user given above # c) a Linux kernel supporting hotplug and usbdevfs # d) the hotplug package (http://linux-hotplug.sourceforge.net/) # e) su # f) env # g) X11 # # In the usermap file, the first field "usb module" should be named # "usbcam" like this script. # # Script written by Trevor Woerner but slightly adapted for inclusion # into libgphoto2. SU=/bin/su ENV=/usr/bin/env if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ] then chmod a-rwx ${DEVICE} chown ${USER} ${DEVICE} chmod u+rw ${DEVICE} if [ ${USER} != "root" ] then # we don't want to run this as root. definitely not. cd ${HOME} ${SU} ${USER} -c "${ENV} DISPLAY=${DISPLAY} HOME=${HOME} ${X11_APP}" fi fi