SANE and SCANNERS help

mrosati · 09-27-2004, 04:24 AM

hi
i have installed sane, sane backends and xsane. when i launch the command
sane-find-scanner
no sccanners are detected.
so i used the -v option and i have an output like this:

searching for USB scanners:
checking /dev/usb/scanner... failed to open (Invalid argument)
checking /dev/usb/scanner0... failed to open (Invalid argument)
checking /dev/usb/scanner1... failed to open (Invalid argument)
checking /dev/usb/scanner2... failed to open (Invalid argument)
checking /dev/usb/scanner3... failed to open (Invalid argument)
checking /dev/usb/scanner4... failed to open (Invalid argument)
checking /dev/usb/scanner5... failed to open (Invalid argument)
...........

and the same for SCSI devices.

the fact is that none of the checked files are present on my computer inside /dev directory or /dev/usb.
how can i manage to create them? i have tried to search the kernel for "scanner" or usb options but none....

scanner (+printer) ---> EPSON STYLUS CX3200
kernel ---> 2.6.8
on Gentoo linux.

thanks

Matteo

mdg · 09-27-2004, 08:32 AM

Make sure you have usb file system (usbfs) support enabled in the kernel. The filesystem also needs to be mounted, best way to do that is in /etc/fstab. Add this line:

Code:

none            /proc/bus/usb     usbfs      defaults   0 0

Also, check the output of "lsmod", it should show usbcore and a module for uhci and/or ehci, unless you built it into the kernel

All this is relevant for Slackware, things might be different in Gentoo.

mrosati · 09-27-2004, 12:54 PM

i hava already activated usbfs in my kernel and it does not appear in lsmod, maybe because i have compiled it static into the kernel.
i have also added that line in fstab and now the fs mounts at boot.
but the problem persists, i cant find any "/dev/usb/scanner*" or /dev/usbscanner*". the only thing that i can see is /dev/usb/lp0 maybe because being this a combo printer and scanner it is identified ad a generic "lp0"...so i have made a lymbolic link like

/dev/usb/scanner ---> /dev/usb/lp0

now sane finds a scanner, but it cant see the model, and i can neither use it...

have you got any other suggestions?

thanks for your help!

Matteo

mdg · 09-27-2004, 01:34 PM

Check in /var/log/dmesg for any reference that the kernel is loading usb drivers. For example, these are some of the lines I have at bootup:

Code:

drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
USB Universal Host Controller Interface driver v2.2
ehci_hcd 0000:00:02.2: nVidia Corporation nForce2 USB Controller
ehci_hcd 0000:00:02.2: irq 5, pci mem e18e1000
ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 1
usb 1-1: new high speed USB device using address 2

Does "scanimage -L" give any output?

mrosati · 09-27-2004, 02:15 PM

dmesg shows this:

-----------------------
ehci_hcd 0000:00:03.2: Silicon Integrated Systems [SiS] USB 2.0 Controller
ehci_hcd 0000:00:03.2: irq 11, pci mem e080d000
ehci_hcd 0000:00:03.2: new USB bus registered, assigned bus number 1
PCI: cache line size of 128 is not supported by device 0000:00:03.2
ehci_hcd 0000:00:03.2: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
ACPI: PCI interrupt 0000:00:03.0[A] -> GSI 5 (level, low) -> IRQ 5
ohci_hcd 0000:00:03.0: Silicon Integrated Systems [SiS] USB 1.0 Controller
ohci_hcd 0000:00:03.0: irq 5, pci mem e080f000
ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ACPI: PCI interrupt 0000:00:03.1[B] -> GSI 10 (level, low) -> IRQ 10
ohci_hcd 0000:00:03.1: Silicon Integrated Systems [SiS] USB 1.0 Controller (#2)
ohci_hcd 0000:00:03.1: irq 10, pci mem e0811000
ohci_hcd 0000:00:03.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 3 ports detected
USB Universal Host Controller Interface driver v2.2
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
--------------------------------------

i dont know sincerly if this is a kernel or module-loading or something like that... i think the problem is a driver-problem...

when i used mkd10.0 the scanner were working perfectly!

Matteo

mrosati · 09-27-2004, 02:17 PM

ah ops i forgot:

scanimage -L:

---------------
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).
---------------

sane-find-scanner -v:

---------------
searching for USB scanners:
checking /dev/usb/scanner... failed to open (Invalid argument)
checking /dev/usb/scanner0... failed to open (Invalid argument)
checking /dev/usb/scanner1... failed to open (Invalid argument)
checking /dev/usb/scanner2... failed to open (Invalid argument)
checking /dev/usb/scanner3... failed to open (Invalid argument)
checking /dev/usb/scanner4... failed to open (Invalid argument)
checking /dev/usb/scanner5... failed to open (Invalid argument)
checking /dev/usb/scanner5... failed to open (Invalid argument)
checking /dev/usb/scanner7... failed to open (Invalid argument)
checking /dev/usb/scanner8... failed to open (Invalid argument)
checking /dev/usb/scanner9... failed to open (Invalid argument)
checking /dev/usb/scanner10... failed to open (Invalid argument)
checking /dev/usb/scanner11... failed to open (Invalid argument)
checking /dev/usb/scanner12... failed to open (Invalid argument)
checking /dev/usb/scanner13... failed to open (Invalid argument)
checking /dev/usb/scanner14... failed to open (Invalid argument)
checking /dev/usb/scanner15... failed to open (Invalid argument)
checking /dev/usbscanner... failed to open (Invalid argument)
checking /dev/usbscanner0... failed to open (Invalid argument)
checking /dev/usbscanner1... failed to open (Invalid argument)
checking /dev/usbscanner2... failed to open (Invalid argument)
checking /dev/usbscanner3... failed to open (Invalid argument)
checking /dev/usbscanner4... failed to open (Invalid argument)
checking /dev/usbscanner5... failed to open (Invalid argument)
checking /dev/usbscanner6... failed to open (Invalid argument)
checking /dev/usbscanner7... failed to open (Invalid argument)
checking /dev/usbscanner8... failed to open (Invalid argument)
checking /dev/usbscanner9... failed to open (Invalid argument)
checking /dev/usbscanner10... failed to open (Invalid argument)
checking /dev/usbscanner11... failed to open (Invalid argument)
checking /dev/usbscanner12... failed to open (Invalid argument)
checking /dev/usbscanner13... failed to open (Invalid argument)
checking /dev/usbscanner14... failed to open (Invalid argument)
checking /dev/usbscanner15... failed to open (Invalid argument)
# No USB scanners found. If you expected something different, make sure that
# you have loaded a driver for your USB host controller and have installed a
# kernel scanner module.

# Not checking for parallel port scanners.

# Most Scanners connected to the parallel port or other proprietary ports
# can't be detected by this program.

# You may want to run this program as root to find all devices. Once you
# found the scanner devices, be sure to adjust access permissions as
# necessary.
-----------------------------------

Matteo