[sane-devel] Problems with SANE 1.0.13 and HP ScanJet 5300C

[Thomas Rösch]

Hello,

I went on debugging this issue and with SANE_DEBUG_SANEI_USB=255 I saw, that 
scanimage seems also to find my USB scanner HP ScanJet 5300C, but is unable 
to open the interface:

[sanei_usb] sanei_usb_find_devices: vendor=0x03f0, product=0x0701
[avision] attach: (Version: 1.0 Build: 80)
[avision] attach: opening libusb:003:002
[sanei_usb] sanei_usb_open: trying to open device `libusb:003:002'
Check that you have permissions to write to 003/002 and, if you don't, that 
you set up hotplug (http://linux-hotplug.sourceforge.net/) correctly.
USB error: could not claim interface 0: Device or resource busy
[sanei_usb] sanei_usb_open: libusb complained: could not claim interface 0: 
Device or resource busy
[sanei_usb] Maybe the kernel scanner driver claims the scanner's interface?
[avision] attach: open failed (Device busy)

I am running SCANIMAGE -L as root, so there should be no permission problem.

Any hints how to solve this issue?

Thanks and regards,
Thomas

> Hello Guys,
>
> I installed Suse Linux 9.1 with SANE 1.0.13 two weeks ago and I am now
> trying to get my scanner HP ScanJet 5300C to work, but unfortunately
> without any success up to now.
> I searched with Google and found many hints how to get a HP ScanJet 5300C
> to work with SANE, but I was either too stupid to apply the hints or they
> did not work at all. Because I am quite new in the Linux business, I
> probably do not know where to look and which information you might need to
> help me, but I try my best.
>
> As I have said, I am using
> Suse Linux 9.1 (kernel 2.6.5)
> SANE 1.0.13
>
> SANE-FIND-SCANNER as root:
> found SCSI scanner "HP ScanJet 5300C 6.00" at /dev/sg0
>   # Your SCSI scanner was detected. It may or may not be supported by SANE.
> Try
>   # scanimage -L and read the backend's manpage.
>
> found USB scanner (vendor=0x03f0, product=0x0701) at libusb:003:002
>   # Your USB scanner was (probably) detected. It may or may not be
> supported by
>   # SANE. Try scanimage -L and read the backend's manpage.
>
>   # Scanners connected to the parallel port or other proprietary ports
> can't be
>   # detected by this program.
>
> SCANIMAGE -L as root:
> device `avision:/dev/sg0' is a Hewlett-Packard ScanJet 5300C flatbed
> scanner
>
> *****************************************
>
> SANE-FIND-SCANNER as user:
>   # No SCSI scanners found. If you expected something different, make sure
> that
>   # you have loaded a SCSI driver for your SCSI adapter.
>
> found USB scanner (vendor=0x03f0, product=0x0701) at libusb:003:002
>   # Your USB scanner was (probably) detected. It may or may not be
> supported by
>   # SANE. Try scanimage -L and read the backend's manpage.
>
>   # 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.
>
> SCANIMAGE -L as user:
> 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).
>
> **************************************
>
> Obviously, SCANIMAGE does only detect a SCSI scanner, but I connected my
> scanner with USB and I even do not have a SCSI port in my PC. Also as a
> normal user SCANIMAGE does not find any scanner which seems to be an
> authorization problem.
>
> But when I start e. g. XSANE (0.92) I receive the message "no devices
> available" and the program closes again (it does not matter if I run it as
> root or as normal user).
>
> It seems to me, that SCANIMAGE does not really detect my scanner even if it
> displays that it has found one (avision:/dev/sg0).
>
> Does anyone know what I can do to force SCANIMAGE to detect my scanner? If
> you need further information about my setup, please feel free to contact me
> and tell me what information you need.
>
> I would appreciate your help very much as I do not want to go back to
> Windows only to get my scanner to work. ;-)
>
> With best regards,
> Thomas