[sane-devel] Still problems with Epson Perfection 3490 Photo

[Olaf Meeuwissen]

jurgen.defurne at pandora.be (Jurgen Defurne) writes:

> I followed the instructions I found here (http://ubuntuforums.org/showthread.php?t=108256), which gave a little bit more information about setting up udev.
>
> I got some better activity and feedback, from this command :
>
> SANE_DEBUG_SNAPSCAN=255 scanimage -L
>
> However, it hangs at sane_snapscan_get_devices, with the following
> output from the process :
>
> [snapscan] atomic_usb_cmd(0,0xbfea70ce,6,0x0,0x0 (0))
> [snapscan] usb_cmd(0,0xbfea70ce,6,0x0,0x0 (0))
> [snapscan] usb_cmd: cmdlen=6, datalen=0
> [snapscan] usb_write: writing:  0x00 0x00 0x00 0x00 0x00 0x00
> [snapscan] Written 6 bytes
> [snapscan] usb_read: reading:  0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00
> [snapscan] Read 8 bytes
> [snapscan] 2nd read 4 write 2
> [snapscan] snapscani_init_device_structure()
> [snapscan] sane_snapscan_get_devices (0xbfea8298, 0)
>
> and after some time the process starts to take up 100% CPU.
>
> What I want to know is if the snapscan backend on its own is enough to
> drive the scanner, or do I always need the iscan shared libraries from
> the Avasys website, and if yes, what is the best place to install them ?

You need a firmware file (esfw52.bin).

As for the iscan shared libraries (I assume you're talking about
iscan-plugin-gt-f520-1.0.0-1.c2.i386.rpm) are only used by the epkowa
backend.  The snapscan backend does not use them.  The epkowa backend
is available in the iscan package/source.

Hope this helps,
-- 
Olaf Meeuwissen                          EPSON AVASYS Corporation, SE1
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