#!/bin/sh
# /usr/local/sbin/dphys-config-usb-storage - load modules for USB storage
# author Neil Franklin, last modification 2006.10.13
# 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 1 line:
#   local/sbin/dphys-config-usb-storage:/usr/:chmod 755 {}; {}


set -e

# get ready to work
# /usr/local added for FreeBSD, because their ports end up in there
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/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
  grep ${MODULE} /etc/modules > /dev/null || echo ${MODULE} >> /etc/modules
  # insert them into the running kernel for this session
  #   use  || true  so we can try nonexisting other kernel version modules
  #     else  set -e  will nuke this script when we try this
  grep "^${MODULE}" /proc/modules > /dev/null || \
      modprobe ${MODULE} 2> /dev/null || true
done

exit 0