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#!/bin/bash
# $Id$
#
# /etc/hotplug/usb/usbcam
#
# Sets up newly plugged in USB camera so that the user who owns
# /dev/console can access it from user space
#
# 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 gphoto2 by running "gphoto2 --print-usb-usermap".
# b) a setup using pam_console that chown's /dev/console to the
# user currently using the "console"
# c) a Linux kernel supporting hotplug and usbdevfs
# d) the hotplug package (http://linux-hotplug.sourceforge.net/)
#
# In the usermap file, the first field "usb module" should be named
# "usbcam" like this script.
#
if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
then
# old code, using traditional parameters
# user="$(ls -l /dev/console | awk '/\/dev\/console$/ { print $3; }')"
# chown "${user}" "${DEVICE}"
# chmod 0600 "${DEVICE}"
# new code, using GNU style parameters
CONSOLE="/dev/console"
chown 0000 "${DEVICE}" # precaution against possible race conditions
chown --reference "${CONSOLE}" "${DEVICE}"
chmod --reference "${CONSOLE}" "${DEVICE}"
fi
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