#! /bin/bash
#
# Johannes Meixner <jsmeix@suse.de>, 2004, 2005, 2006

#set -x

export PATH="/sbin:/usr/sbin:/usr/bin:/bin"
export LC_ALL="POSIX"
export LANG="POSIX"
umask 022

MY_NAME=${0##*/}

# Input:

# Create temporary files:
TMP_DATA=$(mktemp -u /tmp/$MY_NAME.XXXXXX)

# Extract USB entries from the libsane.rules file:
test -n "$1" && RULES_FILE="$1" || RULES_FILE="libsane.rules"
ls $RULES_FILE &>/dev/null || { echo "$MY_NAME error: Required libsane.rules file $RULRS_FILE not found." 1>&2 ; exit 3 ; }
sed -n -e 's/^SYSFS{idVendor}=="\([^"]*\)", SYSFS{idProduct}=="\([^"]*\)",.*/\1 \2/p' $RULES_FILE | tr '[:upper:]' '[:lower:]' | sort -u >$TMP_DATA

# Output:

# Output header:
echo '<?xml version="1.0" encoding="ISO-8859-1"?>'
echo '<deviceinfo version="0.2">'
echo '  <device>'
echo

# Output generic SCSI scanner entry for those SCSI scanners which show up with scsi.type = scanner:
echo '    <match key="info.category" string="scsi_generic">'
echo '      <match key="@info.parent:scsi.type" string="scanner">'
echo '        <append key="info.capabilities" type="strlist">scanner</append>'
echo '      </match>'
echo '    </match>'
echo

# Output model specific USB scanner entries:
exec <$TMP_DATA
while read VENDOR PRODUCT
do echo '    <match key="info.bus" string="usb_device">'
   echo "      <match key=\"usb_device.vendor_id\" int=\"0x$VENDOR\">"
   echo "        <match key=\"usb_device.product_id\" int=\"0x$PRODUCT\">"
   echo '          <append key="info.capabilities" type="strlist">scanner</append>'
   echo '        </match>'
   echo '      </match>'
   echo '    </match>'
   echo
done

# Output footer:
echo '  </device>'
echo '</deviceinfo>'

# Remove the temporary file
rm $TMP_DATA

exit 0