[sane-devel] CPen, new backend

m. allan noah kitno455 at gmail.com
Fri Feb 20 13:20:16 UTC 2009


2009/2/20 Stefan Below <stefanbelow at gmx.de>:
> Hello,
>
> i have a nice little pen scanner (C-Pen 10) and i would like to write a
> driver for this device.  I have already captured some data with usbsnoop and
> converted it with the perlscript. replaying is working fine.
> My onlz problem is, that i am comming from the java world and i have zero
> experience with C. Nevertheless i will give it a try. I think it should
> quite easy, because the pen scanner has no switches etc. My first question
> is, how can i write the output i received with my generated driver into a
> file?

fopen, fwrite, fclose they have man pages.

you might also want to write a pnm header to it first, but you can do
that afterwards with a good editor like vim.

>
> Here are the log file and the "generated driver"

wow, that does look simple. the only problem i see from sane side is
that it uses multiple interrupt endpoints. the sanei_usb support lib
might need some updates to support that.

allan
-- 
"The truth is an offense, but not a sin"



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