[sane-devel] epson2 backend v1.0.25 with Epson ET-4500 logs attached

Olaf Meeuwissen paddy-hack at member.fsf.org
Mon Sep 26 08:42:52 UTC 2016

Hi Roger,

Said I'd take a look.  I did.

Roger Sewell writes:

> Olaf and whoever maintains the epson2 backend,
> At Olaf's request, please find attached the log of a failed scan from
> the ADF of a ET-4500 using the epson2 backend v1.0.25 over the net,
> together with the simultaneously collected wireshark log, both
> compressed with xz.

Looks like a time out issue when the backend has told the scanner to
start scanning.  The backend expects the first image data back in 10
seconds but apparently the scanner it taking its time.

The time out is hardwired in the sanei_epson_net_read_raw() function in
backend/epson2_net.c.  If you can compile from source, try increasing
the value of tv.tv_sec to 60.  I think that should at least get things
going for you.  If not, try 5 minutes (300 seconds), that's what that
imagescan backend seems to be using as a worst case value.

Hope this helps,
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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