[sane-devel] HP5590 and scanbd button recognition

[Ilia Sotnikov]

Hi,
backend author here - it shouldn't be too much of effort to expose
button status so scanbd can use it. Though haven't gone thru its
documentation to understand requirements. As a technical insight -
there is hp5590_read_buttons() function in hp5590_cmds.c that reads
button status.
However, I'll seek for a volunteer to test a change as I don't have
access to HW currently.

On Wed, Mar 7, 2018 at 12:40 AM, Wilhelm Meier
<wilhelm.wm.meier at googlemail.com> wrote:
> Please try the old scanbuttond-backend for this type of scanner - it
> should work. The HP sane backend sadly doesn't support the buttons on
> this scanner.
>
> Am 06.03.2018 um 15:46 schrieb Jared Hedegaard:
>>>
>>> Main question: does the HP 5590 support button presses or am I just setting this up incorrectly?
>>>
>>> I'm been successful using scanbd with SANE backends to get scanning working over my network and locally on the host machine, but I can't seem to get it to recognize button presses, either running scanbd in foreground or background.
>>>
>>> For past testing, it seems that actions defined in scanbd.conf are used to tie to the backend options? From searching /var/log/syslog, I expected to track button presses or get some sort of trigger feedback, and I didn't think I needed an action set up for it.
>>>
>>> Any help on this one would be much appreciated. Thanks.
>>>
>>> Jared H
>>>
>>
>> After a bit more research, it looks like doing this with the SANE backend for HP 5590 is not possible. scanbd is used to tie custom actions to the options available on the scanner. In this case, none of the 10 options seem to return values. They all look to be ones that I designate from some client software.
>>
>> scanbd: found active option[1] tl-x (type: 2) for device hp5590:libusb:001:008
>> scanbd: found active option[2] tl-y (type: 2) for device hp5590:libusb:001:008
>> scanbd: found active option[3] br-x (type: 2) for device hp5590:libusb:001:008
>> scanbd: found active option[4] br-y (type: 2) for device hp5590:libusb:001:008
>> scanbd: found active option[5] mode (type: 3) for device hp5590:libusb:001:008
>> scanbd: found active option[6] source (type: 3) for device hp5590:libusb:001:008
>> scanbd: found active option[7] resolution (type: 1) for device hp5590:libusb:001:008 scanbd: found active option[8] extend-lamp-timeout (type: 0) for device hp5590:libusb:001:008
>> scanbd: found active option[9] wait-for-button (type: 0) for device hp5590:libusb:001:008
>> scanbd: found active option[10] preview (type: 0) for device hp5590:libusb:001:008
>>
>> In this case, it looks like I will have to try the old scanbuttond backends for this, or see if there are optional enhancements for the SANE hp5590 backend.
>>
>> Jared
>>
>
>
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-- 
 Ilia Sotnikov