[sane-devel] Net Client Not Contacting Server

Olaf Meeuwissen paddy-hack at member.fsf.org
Sun Sep 13 03:58:02 BST 2020


C. Cook writes:

> Ok questions:
> The Epson Perfection V370 apparently requires the iScan software which
> can be downloaded from Epson for Linux. But it's not available for
> arm64. I'd like my scan sever to be an Odroid N2+ which is arm64
> running Ubongo Mate.
> Now; I thought that all the other scanner backends required only the
> backend conf in /etc/sane.d, but I find that there seem to be libs for
> each scanner in /usr/lib64/libgphoto2/2.5.15/.
> On the Odroid running Ubongo I find these libs in
> /usr/lib/aarch64-linux-gnu/libgphoto2/ and
> /usr/lib/aarch64-linux-gnu/sane/ .
> Well iScan comes only in x86_64 flavor, although they do post the source:
> - Are these libs necessary for the scanners to work?
> - How do the client apps know which lib to pull?
> - Do I need to compile epkowa.so for the Odroid to make the V370 work?
> - Is there anything else I need to do?

You need to get EPSON to provide arm64 binaries in order to get your
V370 to work.

As you can see in the list at


the V370 "requires DFSG non-free iscan-plugin-perfection-v370".  This
plugin is only made available as a binary.  No source is available.

You can recompile the epkowa backend for arm64 all you want but that
will only make it work for those models that do not require one of those
non-free plugins that are needed by a select subset of devices supported
by that backend :-/

Sorry this doesn't help,
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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