[sane-devel] Epson and epkowa

[Ralph Little]

Hi,

On 2020-05-18 4:48 a.m., Olaf Meeuwissen wrote:
>
>>>>> If so, what is the likelihood that epson2 would work with this
>>>>> scanner with moderate modifications?
> None.  The non-free interpreter is dlopen()ed by the epkowa backend and
> it converts the regular ESC/I protocol to the device's native protocol,
> insofar possible.  Mind you, there are *several* such native protocols.
> These native protocol are not even remotely close to the ESC/I protocol.
> You'd be better of trying to find a backend that uses something close.
> For a few of the interpreter using devices, the snapscan backend is a
> good match.  For others, I don't know.  Maybe sane-find-scanner can be
> of help to check whether it's something genesys-like, I don't know.
>
> While porting those interpreters at part of my work duties, I have
> tended not to look at the closed source more than absolutely needed to
> get them to compile and "work".  That was about a decade (or more) ago
> so I don't have any recollection anyway beyond what found its way into
> epkowa.desc :-P
>
Do we have any documentation regarding the ESC/I protocol?

Cheers,
Ralph