[sane-devel] Newbie questions

clydes at TheWorld.com clydes at TheWorld.com
Tue Jul 24 23:37:08 UTC 2012

No, I have not seen this. And thanks for the advice on the attachment.

I did take a look and it compiles and all... but it fails with errors:

usb_get_driver_np returned -1
claim failed with error -1


> I suppose you have seen this:
> http://www.chmil.org/hp4600linux/
> It might at give you some hints. For a proper starting point, you
> would want to take a look at an existing backend, and find one that
> suits your programming style.
> Also, please learn to cut and past text, instead of attaching images
> of text. This will allow it to show up in the mailing list archives
> and search engines...
> allan
> On Mon, Jul 23, 2012 at 7:56 PM,  <clydes at theworld.com> wrote:
>> Hello all,
>> Pardon me if I start out a little rough around the edges, but here goes.
>> I'd like to write a back end for the HP 4670 scanner which is currently
>> not supported.
>> Attached is the output from the find scanners command.
>> I am not a strong programmer, but rather and embedded hardware designer,
>> but know my way around C and am willing to give this a go. (I've written
>> thousands of lines of assembler for just about every micro and a ton of
>> FORTRAN putting myself through college.  There, I just dated myself!)
>> If I am successful in this endeavour, I can finally kiss Windows good
>> bye
>> once and for all. The only reason I boot it any more is to use the
>> scanner.
>> My questions to the group are:
>> 1.) Anyone out there started this effort on this scanner?
>> 2.) I believe the scanner is high level, so I am wondering if there is a
>> back end template to start from
>> 3.) Is there material I need to read to smarten up (read-mes, tutorials,
>> web stuff, etc. on how these things work?
>> 4.) If anyone has friendly advice on how best to get started and tips on
>> etiquette here, I am all ears.
>> Clyde
>> Boston Metro Area
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> "The truth is an offense, but not a sin"

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