[sane-devel] Problem with Button of HP ScanJet 6200C Scanner and scanbd

Fri Nov 16 18:49:53 UTC 2012

Am 16.11.2012 14:01, schrieb m. allan noah:
> A quick read of the the hp backend code indicates that it attempts to
> manage its own buttons. When you start a scan with --button-wait, the
> backend blocks and polls the button. I don't think you see the option
> from scanbd. The backend would have to be modified.

Ok, thanks for the info - it's a pity, because now using buttons 
together with local or remote scan-applications is impossible :-(

>
> allan
>
> On Fri, Nov 16, 2012 at 1:03 AM, Thomas Boll
> <thomas.alexander.boll at gmail.com> wrote:
>> Hello Wilhelm,
>>
>> it's me again. The output of syslog led me to the config files again and I
>> found that I left "lp" as goup in scanbd.conf.
>>
>> When I changed "goup = lp" to "group = scanner" I can now run:
>>
>> # scanbd -fd -c /usr/local/etc/scanbd/scanbd.conf
>>
>> and I see 28 (output says 29) options for my scanner in the output ((see
>> output below)).
>>
>> As far as I understand the next step would be to look which (if any) of the
>> options changes when I push the button.
>> Is there a way to let scanbd log every option change as I cannot see
>> anything happen, when I press the button while scanbd is polling for option
>> changes (see output below)?
>>
>> Also running in monitor mode like:
>>
>> # scanbd -m -fd -c /usr/local/etc/scanbd/scanbd.conf
>>
>> or
>>
>> # scanbd -m -c /usr/local/etc/scanbd/scanbd.conf
>>
>> do still give me the same output as in my first mail (saned exited with 0).
>> But I did not investigate any further in this direction (yet) and assume
>> that there are still some rights problems that I can hopefully solve on my
>> own.
>>
>> I know you are busy, but any further help/hints with the options thing would
>> be great as I also do not fully understand what is filtered when in
>> scanbd.conf actions in the global section and in actions of the hp section
>> and how it all fits together (e.g. I connot see any option containg
>> "message" so what does "^message.*" filter do?). I read INSTALL but could
>> not find any further doku on that.
>>
>> Thanks again for the support and regards,
>> Thomas
>>
>> root at server:/# scanbd -fd -c /usr/local/etc/scanbd/scanbd.conf
>>
>> scanbd: debug on: level: 7
>> scanbd: dropping privs to uid saned
>> scanbd: dropping privs to gid scanner
>> scanbd: group scanner has member:
>> scanbd: saned
>> scanbd: me
>> scanbd: drop privileges to gid: 112
>> scanbd: Running as effective gid 112
>> scanbd: drop privileges to uid: 103
>> scanbd: Running as effective uid 103
>> scanbd: dbus_init
>>
>> scanbd: dbus match type='signal',interface='org.freedesktop.Hal.Manager'
>> scanbd: sane version 1.0
>> scanbd: Scanning for local-only devices
>> scanbd: found device: hp:libusb:001:013 Hewlett-Packard ScanJet 62x0C
>> flatbed scanner
>> scanbd: start_sane_threads
>> scanbd: Starting poll thread for hp:libusb:001:013
>> scanbd: Thread started for device hp:libusb:001:013
>> scanbd: start dbus thread
>> scanbd: udev init
>> scanbd: timeout: 500 ms
>> scanbd: sane_poll
>> scanbd: Iteration on dbus call
>> scanbd: found 29 options for device hp:libusb:001:013
>> scanbd: sane_find_matching_options
>>
>> scanbd: found 5 actions in section (null)
>> scanbd: checking action scan with filter: ^scan.*
>> scanbd: option[1]  for device hp:libusb:001:013 not of type
>> BOOL|INT|FIXED|STRING|BUTTON. Skipping
>> scanbd: found active option[2] preview (type: 0) for device
>> hp:libusb:001:013
>> scanbd: found active option[3] mode (type: 3) for device hp:libusb:001:013
>> scanbd: found active option[4] resolution (type: 1) for device
>> hp:libusb:001:013
>> scanbd: option[5]  for device hp:libusb:001:013 not of type
>> BOOL|INT|FIXED|STRING|BUTTON. Skipping
>> scanbd: found active option[6] brightness (type: 1) for device
>> hp:libusb:001:013
>> scanbd: found active option[7] contrast (type: 1) for device
>> hp:libusb:001:013
>> scanbd: found active option[8] auto-threshold (type: 0) for device
>> hp:libusb:001:013
>> scanbd: option[9]  for device hp:libusb:001:013 not of type
>> BOOL|INT|FIXED|STRING|BUTTON. Skipping
>> scanbd: found active option[10] custom-gamma (type: 0) for device
>> hp:libusb:001:013
>> scanbd: found active option[12] matrix-type (type: 3) for device
>> hp:libusb:001:013
>> scanbd: found active option[15] speed (type: 3) for device hp:libusb:001:013
>> scanbd: found active option[18] source (type: 3) for device
>> hp:libusb:001:013
>> scanbd: found active option[19] button-wait (type: 0) for device
>> hp:libusb:001:013
>> scanbd: found active option[20] lamp-off (type: 4) for device
>> hp:libusb:001:013
>> scanbd: found active option[21] change-document (type: 4) for device
>> hp:libusb:001:013
>> scanbd: option[22]  for device hp:libusb:001:013 not of type
>> BOOL|INT|FIXED|STRING|BUTTON. Skipping
>> scanbd: found active option[23] tl-x (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[24] tl-y (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[25] br-x (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[26] br-y (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[27] mirror-horizontal (type: 3) for device
>> hp:libusb:001:013
>> scanbd: found active option[28] mirror-vertical (type: 3) for device
>> hp:libusb:001:013
>>
>> scanbd: checking action email with filter: ^email$
>> scanbd: option[1]  for device hp:libusb:001:013 not of type
>> BOOL|INT|FIXED|STRING|BUTTON. Skipping
>> scanbd: found active option[2] preview (type: 0) for device
>> hp:libusb:001:013
>> scanbd: found active option[3] mode (type: 3) for device hp:libusb:001:013
>> ...
>> scanbd: found active option[25] br-x (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[26] br-y (type: 2) for device hp:libusb:001:013
>> scanbd: found active option[27] mirror-horizontal (type: 3) for device
>> hp:libusb:001:013
>> scanbd: found active option[28] mirror-vertical (type: 3) for device
>> hp:libusb:001:013
>> scanbd: sane_find_matching_functions
>> scanbd: no matching functions in section hp
>> scanbd: timeout: 500 ms
>> scanbd: Start the polling for device hp:libusb:001:013
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> scanbd: Iteration on dbus call
>> scanbd: polling thread for hp:libusb:001:013 cancellation point
>> scanbd: polling device hp:libusb:001:013
>> scanbd: get_sane_option_value
>> scanbd: checking option preview number 2 (0) for device hp:libusb:001:013:
>> value: 0
>> ^Cscanbd: sig_term/int_handler called with signal 2
>> scanbd: stop_sane_threads
>> scanbd: stopping poll thread for device hp:libusb:001:013
>> scanbd: waiting for poll thread for device hp:libusb:001:013
>> scanbd: sane_thread_cleanup_mutex
>> scanbd: closing device hp:libusb:001:013
>> scanbd: freeing opt ressources for device hp:libusb:001:013 thread
>> scanbd: freeing funtion ressources for device hp:libusb:001:013 thread
>> scanbd: stop dbus thread
>> scanbd: join dbus thread
>> scanbd: stop udev thread
>> scanbd: cleanup device handler
>> scanbd: join udev thread
>> scanbd: close udev monitor
>> scanbd: close udev
>> scanbd: exiting scanbd
>>
>>
>> --
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>
>
>


-- 
Wilhelm