Bug#308081: libsane: epson backend stops working in newer version

2005-05-07 Thread Nils Rennebarth 
Package: libsane
Version: 1.0.15-9
Severity: important


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.11-rc3
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages libsane depends on:
ii  adduser 3.51 Add and remove users and groups
ii  debconf 1.4.25   Debian configuration management sy
ii  libc6   2.3.2.ds1-21 GNU C Library: Shared libraries an
ii  libgphoto2-22.1.5-4  gphoto2 digital camera library
ii  libgphoto2-port02.1.5-4  gphoto2 digital camera port librar
ii  libieee1284-3   0.2.8-2  Cross-platform library for paralle
ii  libjpeg62   6b-9 The Independent JPEG Group's JPEG 
ii  libusb-0.1-42:0.1.10a-9  userspace USB programming library
ii  makedev 2.3.1-78 creates device files in /dev
ii  sane-utils  1.0.15-9 API library for scanners -- utilit

-- no debconf information

my epson 1650 photo used to work well about two months ago. It stops working
under linux after some updates. The symptoms are:
(as root, comments stripped)
# sane-find-scanner
found USB scanner (vendor=0x04b8 [EPSON], product=0x0110 [EPSON Scanner]) at
libusb:002:010

so it somehow does see the scanner.

here is what lsusb reports:

# lsusb
Bus 004 Device 001: ID :
Bus 003 Device 001: ID :
Bus 002 Device 010: ID 04b8:0110 Seiko Epson Corp. Perfection 1650
Bus 002 Device 001: ID :
Bus 001 Device 005: ID 046d:c012 Logitech, Inc. Optical Mouse
Bus 001 Device 001: ID :

# ls -l /proc/bus/usb/002
total 0
-rw-r--r--1 root root   43 2005-05-07 20:54 001
-rw-rw1 root scanner50 2005-05-07 20:54 010

so hotplug also recognized it and changed the permissions of the device.

Here is the config file of the epson backend
# epson.conf
#
# here are some examples for how to configure the EPSON backend
#
# SCSI scanner:
# scsi EPSON
#
# Parallel port scanner:
#pio 0x278
#pio 0x378
#pio 0x3BC
#
# USB scanner:
# There are two different methods of configuring a USB scanner: libusb and the 
kernel module
# For any system with libusb support (which is pretty much any recent Linux 
distribution) the
# following line is sufficient. This however assumes that the connected scanner 
(or to be more
# accurate, it's device ID) is known to the backend. 
# For libusb support for unknown scanners use the following command
# usb  
# e.g.:
# usb 0x4b8 0x110
# And for the scanner module, use the following configuration:
#usb /dev/usbscanner0
#usb /dev/usb/scanner0
usb
--
but scanimage -L (under root as well as under normal user in group scanner)
reports:

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

The Light on the scanner shortly blinks when I issue the command, then the
command hangs for a while and finally issues an error message. Here is the
output of 

$ USB_DEBUG=255 scanimage -L
usb_set_debug: Setting debugging level to 255 (on)
usb_os_init: Found USB VFS at /proc/bus/usb
usb_os_find_busses: Found 004
usb_os_find_busses: Found 003
usb_os_find_busses: Found 002
usb_os_find_busses: Found 001
usb_os_find_busses: Skipping non bus directory devices
usb_os_find_devices: couldn't get connect info
usb_os_find_devices: Found 001 on 004
error obtaining child information: Operation not permitted
usb_os_find_devices: couldn't get connect info
usb_os_find_devices: Found 001 on 003
error obtaining child information: Operation not permitted
usb_os_find_devices: Found 010 on 002
usb_os_find_devices: couldn't get connect info
usb_os_find_devices: Found 001 on 002
error obtaining child information: Inappropriate ioctl for device
error obtaining child information: Operation not permitted
usb_os_find_devices: couldn't get connect info
usb_os_find_devices: Found 005 on 001
skipped 1 class/vendor specific interface descriptors
usb_os_find_devices: couldn't get connect info
usb_os_find_devices: Found 001 on 001
error obtaining child information: Operation not permitted
error obtaining child information: Operation not permitted
USB error: error submitting URB: No such file or directory
[ pause of approx 5 seconds]
USB error: error submitting URB: No such file or directory
USB error: error submitting URB: No such file or directory

No scanners were identified. If you were expecting something different,
...


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Bug#308081: libsane: epson backend stops working in newer version

2005-05-07 Thread Julien BLACHE 
Nils Rennebarth <[EMAIL PROTECTED]> wrote:

Hi,

> usb_os_find_devices: Found 010 on 002
> usb_os_find_devices: couldn't get connect info

Something's going wrong here. Did you try as root ? Is there anything
in /var/log/messages ?

JB.

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Bug#308081: libsane: epson backend stops working in newer version

2005-05-08 Thread Julien BLACHE 
Nils Rennebarth <[EMAIL PROTECTED]> wrote:

Hi Nils,

> error obtaining child information: Operation not permitted
> error obtaining child information: Operation not permitted
> USB error: error submitting URB: No such file or directory
> [ pause of approx 5 seconds]
> USB error: error submitting URB: No such file or directory
> USB error: error submitting URB: No such file or directory

Could you try the following:
 - SANE_DEBUG_DLL=255 scanimage -L
 - apt-get remove --purge libsane-extras then SANE_DEBUG_DLL=255 scanimage -L

Thanks,

JB.

-- 
 Julien BLACHE - Debian & GNU/Linux Developer - <[EMAIL PROTECTED]> 
 
 Public key available on  - KeyID: F5D6 5169 
 GPG Fingerprint : 935A 79F1 C8B3 3521 FD62 7CC7 CD61 4FD7 F5D6 5169 


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Bug#308081: libsane: epson backend stops working in newer version

2005-05-09 Thread Aurelien Jarno 
Hi!

On Sat, May 07, 2005 at 09:02:01PM +0200, Nils Rennebarth wrote:
> Package: libsane
> Version: 1.0.15-9
> Severity: important

...

> Kernel: Linux 2.6.11-rc3
^^
Your problem comes from that. The USB stack is totally fucked in kernel
2.6.11-rc1 to 2.6.11-rc5. Please upgrade your kernel to version 2.6.12
to fix the problem, or use the patch that can be found here:
http://www.ussg.iu.edu/hypermail/linux/kernel/0502.3/0579.html

Bye,
Aurelien 

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Bug#308081: libsane: epson backend stops working in newer version

2005-05-09 Thread Julien BLACHE 
Nils Rennebarth <[EMAIL PROTECTED]> wrote:

> Oh, and this is stock 2.6.11-rc3 kernel, only patches are for software
> suspend2, and I don't think that matters much. I might try a newer
> kernel in the future but I won't go back because this is the first one
> that really suspends flawlessly and works quite ok otherwise on this laptop.
>
> There was a thread on the gphoto2 mailing list that suggests some
> changes in the kernel URB handling may be the reason:
>
> http://sourceforge.net/mailarchive/forum.php?thread_id=7182503&forum_id=32960
>
> Does that ring any bells?

Ooooh yes it does now, as Aurélien already wrote. Sorry I didn't
trigger on the kernel version earlier on. Tell us how it goes with a
fixed kernel (provided that kind of thing actually exists when it
comes to USB ...)

JB.

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 Debian & GNU/Linux Developer|   
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