--- 3m-810.pl	2009/04/06 13:10:40	29
+++ 3m-810.pl	2009/04/06 15:19:24	31
@@ -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 {
@@ -258,10 +277,14 @@
 
 	my $data = read_file( $path );
 
-	print "write_tag $tag = $data\n";
+	$data = substr($data,0,16);
+
+	my $hex_data = unpack('H*', $data) . ' 00' x ( 16 - length($data) );
+
+	print "write_tag $tag = $data ",dump( $hex_data );
 
 	cmd(
-		"D6 00  26  04  $tag  00 06 00  04 11 00 01  61 61 61 61  62 62 62 62  63 63 63 63  64 64 64 64  00 00 00 00  FD3B", "write $tag",
+		"D6 00  26  04  $tag  00 06 00  04 11 00 01  $hex_data 00 00 00 00  FD3B", "write $tag",
 		"D6 00  0D  04 00  $tag  06  AFB1", sub { assert() },
 	) foreach ( 1 .. 3 ); # XXX 3M software does this three times!
 
@@ -271,6 +294,7 @@
 	rename $path, $to;
 	print ">> $to\n";
 
+	delete $tags_data->{$tag};	# force re-read of tag
 }
 
 exit;