#!/bin/bash

# $Id$

#

# /etc/hotplug/usb/usbcam

#

# Sets up newly plugged in USB camera so that the user who owns

# the console according to pam_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 creates the respective lock files

#    containing the name of the respective user. You can check for that

#    by executing "echo `cat /var/{run,lock}/console.lock`" and 

#    verifying the appropriate user is mentioned somewhere there.

# 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

    # We reference /dev/audio, since we want to have the same permissions

    chmod 0000 "${DEVICE}"

    chown --reference=/dev/audio "${DEVICE}"

    chmod 0600 "${DEVICE}"

fi