#!/bin/sh
# /usr/local/sbin/dphys-config-usb-storage - load modules for USB storage
# author Neil Franklin, last modification 2006.09.14
# copyright ETH Zuerich Physics Departement,
#   use under either modified/non-advertising BSD or GPL license

# this script is called by dphys-config, once on each script install/update
#   no parameters or environment variables are evaluated
# it requires in /etc/dphys-config.list 2 lines:
#   usb-storage.dev:/etc/dev.d/block/:/bin/chmod 755 {}
#   local/sbin/dphys-config-usb-storage:/usr/:/bin/chmod 755 {}; {}


set -e

# get ready to work
PATH=/sbin:/bin:/usr/sbin:/usr/bin
export PATH


# install and load kernel modules needed for USB storage
#   usbcore is needed for all USB stuff, should be already in, but go safe
#   sd_mod is SCSI disk, for logging scsi<n> numbers to /dev/sd<x> names map
#     this is missing in Debian Linux 3.1 (sarge) standard kernels
#   usb-storage is generic USB storage device protocol
for MODULE in usbcore sd_mod usb-storage ; do
  # insert them into /etc/modules for after future boots
  /bin/grep ${MODULE} /etc/modules > /dev/null || \
    /bin/echo ${MODULE} >> /etc/modules
  # insert them into the running kernel for this session
  #   use  || /bin/true  so we can try nonexisting other kernel version modules
  #     else  set -e  will nuke this script when we try this
  /bin/grep '^${MODULE}' /proc/modules > /dev/null || \
    /sbin/modprobe ${MODULE} 2> /dev/null || /bin/true
done

exit 0