--- 3m-810.pl	2009/04/06 13:18:55	30
+++ 3m-810.pl	2009/04/08 14:48:22	33
@@ -101,6 +101,23 @@
 my $tags_data;
 my $visible_tags;
 
+my $item_type = {
+	1 => 'Book',
+	6 => 'CD/CD ROM',
+	2 => 'Magazine',
+	13 => 'Book with Audio Tape',
+	9 => 'Book with CD/CD ROM',
+	0 => 'Other',
+
+	5 => 'Video',
+	4 => 'Audio Tape',
+	3 => 'Bound Journal',
+	8 => 'Book with Diskette',
+	7 => 'Diskette',
+};
+
+warn "## known item type: ",dump( $item_type ) if $debug;
+
 my $port=new Device::SerialPort($device) || die "can't open serial port $device: $!\n";
 warn "using $device $handshake $baudrate $databits $parity $stopbits" if $debug;
 $handshake=$port->handshake($handshake);
@@ -222,7 +239,9 @@
 		$tag_data_block->{$tag}->[ $ord ] = $data;
 	}
 	$tags_data->{ $tag } = join('', @{ $tag_data_block->{$tag} });
-	print "DATA $tag ",dump( $tags_data ), "\n";
+
+	my $item_type_nr = ord(substr( $tags_data->{$tag}, 3, 1 ));
+	print "DATA $tag ",dump( $tags_data ), " item type: ", ( $item_type->{ $item_type_nr } || "UNKWOWN '$item_type_nr' in " . dump( $item_type ) ), "\n";
 }
 
 sub read_tag {
@@ -249,6 +268,28 @@
 		}
 	);
 
+	my $security;
+
+	cmd(
+		"D6 00 0B 0A $tag 1234", "check security $tag",
+		"D6 00 0D 0A 00", sub {
+			my $rest = shift;
+			my $from_tag;
+			( $from_tag, $security ) = ( substr($rest,0,8), substr($rest,8,1) );
+			die "security from other tag: ",as_hex( $from_tag ) if $from_tag ne str2bytes( $tag );
+			$security = as_hex( $security );
+			warn "# SECURITY $tag = $security\n";
+		}
+	);
+
+	my $data = $tags_data->{$tag} || die "no data for $tag";
+	my ( $u1, $set_item, $u2, $type, $content, $br_lib, $custom ) = unpack('C4Z16Nl>',$data);
+	my $set   = ( $set_item & 0xf0 ) >> 4;
+	my $total = ( $set_item & 0x0f );
+	my $branch  = $br_lib >> 20;
+	my $library = $br_lib & 0x000fffff;
+	print "TAG $tag [$u1] set: $set/$total [$u2] type: $type '$content' branch: $branch library: $library custom: $custom security: $security\n";
+
 }
 
 sub write_tag {