#!/bin/bash

#

# /sbin/libifp-hotplug

# 

# Cloned off the usbcam hotplug script that is shipped by 

# Red Hat with gphoto2. In principle we could just call that one,

# but it's ugly to depend on a camera driver in order to talk

# to an audio player...

#

# Sets up newly plugged-in iRiver iFP device 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/usb/libifp.usermap that corresponds 

#    to the iFP device you are using.

# 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/)

#

# All of the above are expected to be true on recent Red Hat and Fedora

# distributions in the default install.

#

# In the usermap file, the first field "usb module" should be named 

# "libifp" like this script.

# 

if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]

then

    # New code, using lock files instead of copying /dev/console permissions

    # This also works with non-gdm logins (e.g. on a virtual terminal)

    # Idea and code from Nalin Dahyabhai <nalin@redhat.com>

    if [ -f /var/run/console/console.lock ]

    then

        CONSOLEOWNER=`cat /var/run/console/console.lock`

    elif [ -f /var/lock/console.lock ]

    then

        CONSOLEOWNER=`cat /var/lock/console.lock`

    else

        CONSOLEOWNER=

    fi

    if [ -n "$CONSOLEOWNER" ]

    then

        chmod 0000 "${DEVICE}"

        chown "$CONSOLEOWNER" "${DEVICE}"

        chmod 0600 "${DEVICE}"

    fi

fi