170506 Gene Hannan wrote:
> On 05/05/2017 04:27 PM, Philip Webb wrote:
>> I want to get my new Epson V550 working on Gentoo,
>> having successfully installed Epson's driver on Mint.
>>
>> I installed the Gentoo pkg 'dpkg', which handles .deb archives,
>> & listed the content of the  3  .deb files in the Epson driver pkg.
>> They cb viewed at  http://chass.utoronto.ca/~purslow/test/
>> with names beginning with 'v550'.
>>
>> It appears that the pkg installs a utility 'iscan',
>> a Sane plugin called 'epkowa', which is not available via Sane-backends
>> ( /etc/hotplug/usb/libsane.usermap  doesn't list it),
>> plus some further data files + a lot of dox.
>>
>> I've tried  3  methods without success :
>> (1) install Iscan via Portage & copy the other files in the .deb ;
>> (2) copy all the files in the .deb  (apart from dox) (list checked) ;
>> (3) try to run the  install.sh  script.
> I have an Epson 4490 which is supported by epkowa plugin 
> iscan-plugin-gt-x750.  I found that ebuild on an overlay long ago.
> That ebuild looks much like those currently in the tree for newer models. 
> In each of the ebuilds I looked at, there is an "iscan-registry" command 
> executed subsequent to installing all the files
> which registers the plugin. Perhaps this is what is missing.
> The registration command includes a USB identifier
> which will differ with scanner model.

Thanks ! -- that's the solution after doing (2) above.

I had to run 'iscan-registry --add interpreter usb 0x04b8 0x013b \
/usr/lib/iscan/libiscan-plugin-perfection-v550'.
The whole line is essential & the help file is not very clear,
but once I got it right the scanner woke up & I completed a scan
(my usual test photo of the Canadian Foreign Minister + the IMF Chief
talking past an awkward-looking Ms Trump : see my I/net site above).

As usual with Gentoo, problems are  1  layer deep.
You have to find the correct item to change, then everything works.

HTH others who may find it via Google etc.

-- 
========================,,============================================
SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
TRANSIT    `-O----------O---'   purslowatchassdotutorontodotca


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