[Canonscanner-devel] update for the backend

[Johann P. <joh...@we...>]

Hi everyone,

it is astonishing what one can do in only one free weekend... On CVS should
be a new version for the backend. There are no dramatic changes, but I
straightened out a few things and integrated those things that were mentioned
on the list (I hope I didn't forget something). Here in short:
- Detection supports the models 650/656, 670/676, 1220, 1240 according to
Alberts list,
- Possible devices are read from a config file now. Christian: I had to
rewrite your code some, because it stopped after the first non-comment line.
This took me to rewrite the whole procedure a bit, see also README file.
Angelo: putting some more info into the config file seems to be good for
testing things, but we must parse it then...
- added debugging macros. Angelo: Just for the sake of standardisation I took
the predefined SANE macros. Remember to set the environment variables (see
README file).
- added some more options.
- changed / fixed various small things, thanks for testing!

The changes affect mainly the sane-part. So unfortunately 650/656 and 1220
users won't probably be able to work with it yet. These are the next things
to do:
- get all detected scanners more or less to work. I'll try to extract some
info's out of Vladimirs test program.
- start callibration. The LM9831 Software Designers Guide from
http://www.geocities.com/SiliconValley/Mouse/5403/ should help
- straighten out some things regarding color modes and preview scanning.

Be patient, the next free weekend for me will come sometime, meanwhile please
test!

best
Johann