Recent changes to bugs

LIBNJB panic: chunk_size > remain

stefjans — Sun, 29 Jan 2012 12:33:40 -0000

I got the "LIBNJB panic: chunk_size > remain, going to get whole chunk and see what happens!!" error message from time to time, so i examined the code and noticed that the test on line 1122 of procedure.c in libnjb-2.2.7 compares a signed int with an unsigned int. When something goes wrong in njb3_request_file_chunk (line 1115 of the same file). chunk_size gets set to -1 and the test on 1122 "fails".

Solution could be to move the test at line 1131 up.

When i make that modification myself i no longer have to plug/unplug my device when something goes wrong, but i can simply restart the application.

libnjb drops some Chinese characters

bookstack — Wed, 18 Jul 2007 04:17:49 -0000

libnjb-2.2.4 would drop all 0x80xx xxxx utf8 character when converting the utf8 string to ucs2 big-endian. The same bug is also in libnjb 2.2.5.

Attached is the patch to solve the problem, tested under libnjb 2.2.4 + Amarok in Gentoo.

libnjb instable when reading Creative Nomad jukebox2 content

Anonymous — Sat, 20 Jan 2007 19:04:58 -0000

Please see bug report posted on Mandriva's bugzilla :

http://qa.mandriva.com/show_bug.cgi?id=25001

Chrashes gnomad2 when transferring certain files.

Eruantalon — Tue, 27 Jun 2006 10:08:44 -0000

Gnomad2 crashes when I try to transfer this mp3(and a
lot of others) to my Creative Zen touch:
http://www.podtrac.com/pts/redirect.mp3?http://aolradio.podcast.aol.com/twit/TWiT0047H.mp3

I have tried both on my Ubuntu Dapper Drake and Debian
testing. Both are running version 2.8.5 of gnomad2 and
version 2.2.5 of libnjb.

It seems that it segfaults right before the actual
transferring of the file.

If needed I can supply a lot of files which causes the
crash.

usb_set_configuration fails with libusb-0.1.12

T.R.Shashwath — Sat, 10 Jun 2006 16:56:56 -0000

Using libusb-0.1.12, any njb application
(njb-handshake, for example) fails with an error as
below:

usb_set_configuration: Operation not permitted

The full output of njb-handshake is:
Found 1 devices.
Device 1:
usb_set_configuration: Operation not permitted
Player device type:

and the prompt appears after that.

It works as root, though, and works with
libusb-0.1.11 with no errors. Libnjb version is
libnjb-2.2.4, kernel 2.6.15 compiled from
Gentoo-sources and obviously, distribution is Gentoo
Linux.

libnjb panic from gnomad2

Anonymous — Wed, 17 May 2006 02:16:24 -0000

When reading from a zen touch, gnomad2 prints the
following messages:

This is a PDE device
LIBNJB Panic: Unknown playlist frame 010f, length 001e
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 0014
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 001e
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 0014
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 001e
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 0014
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 001e
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 0014
bytes
LIBNJB Panic: Unknown playlist frame 010f, length 001e
bytes
Bad track detected in playlist, track ID: 158481
Bad track detected in playlist, track ID: 245892
Bad track detected in playlist, track ID: 509807
Bad track detected in playlist, track ID: 509746
Bad track detected in playlist, track ID: 597376
Bad track detected in playlist, track ID: 683893
Bad track detected in playlist, track ID: 760686
Bad track detected in playlist, track ID: 848608
Bad track detected in playlist, track ID: 940628

Afterwards the playlists listed by gnomad2 are corrupt
(compared to what the jukebox has). One playlist is
reported to be empty and two others have their contents
swapped.

my email = yxynthymyr@yahoo.com

compete udev support

kaouete — Mon, 30 Jan 2006 12:09:16 -0000

hi,
i am using libnjb on a debian etch and since few months
hotplug is not anymore used.

There is only udev.

The current maintener of libnjb on debian made a udev
rules file, but it will be better to have one directly
in the upstream version i think.

Another problem is that the nomadjukebox hotplug script
shipped with libnjb (upstream) is not completely
compatible with udev since there is two different
device file (one in /dev and one in /proc), you should
read this :
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=337790

there is a good explanation at the end.

I hope there will be a good udev support for libnjb soon :)

thanks

Problem with product ID for Zen Sleek

malakhi — Mon, 21 Nov 2005 02:15:58 -0000

There appears to be a problem with the product ID for
the Zen Sleek. The value provided by libnjb is 0x4136,
while mine shows up as 0x4137. Maybe there is a model
revision?

The output of lsusb -v is below:

Bus 004 Device 002: ID 041e:4137 Creative Technology, Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x041e Creative Technology, Ltd
idProduct 0x4137
bcdDevice 1.00
iManufacturer 1 Creative Technology Ltd
iProduct 2 Creative Zen Sleek
iSerial 3 010125519B0####D
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 16 Configuration 1
bmAttributes 0xc0
Self Powered
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 0 (Defined at Interface
level)
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 33 MTP Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 4
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1

Zen Touch hangs

Wed, 13 Jul 2005 12:10:59 -0000

Hi,
i'm having quite much trouble wich my Creative Zen Touch.
gnomad2 doesn't even get the playlists, and dies when
it comes to deleting tracks or creating playlists
but i think these are only symptomes for a problem in
libnjb itself, because any GUI makes trouble. gnomad2
is in fact the only one that is at least usable enough
to upload tracks, kzenexplorer hangs the jukebox at the
begining with the second Command it executes on the
jukebox, NJB_Get_Owner_String.

while testing around a bit with the sample programms i
noticed that playlists fetches the playlists just fine,
but in NJB_close, the jukebox hangs, the prog sleeps a
while and then quits with error_overflow.

i've attached an run of playlists with -D15, in the
hope that it will help you locate this pretty anoying bug.

if i can help you in any other way, feel free to
contact me.

New libnjb-2.1 causes conflict with gnomad2-2.6.3-1

Rich Hutchinson — Wed, 11 May 2005 09:11:24 -0000

On FC3, using the rpms, libnjb-2.1 causes the following
conflict with the Nomad file manager/tagging proggy
Gnomad2:

file /etc/hotplug/usb/nomad.usermap from install of
libnjb-2.1-1.FC3 conflicts with file from package
gnomad2-2.6.3-1.FC3