Scanner button add-on

[David Zeuthen]

Hi,

Sorry for the lag!

On Mon, 2007-04-16 at 21:05 -0400, Donald Straney wrote:
> > Regarding your second question I actually added an item to the TODO list
> > some time ago
> >
> >  http://gitweb.freedesktop.org/?p=hal.git;a=commitdiff;h=6992f57a90e9e2a5b9f9c008204f2ef953d4db63;hp=ac8bf1edd90549875c2c0a9d8601a6f8a9d3e8c7
> >
> > to mention that we need singleton addon's - this feature will be in
> > 0.5.10 which is out in a few months (major feature is PolicyKit
> > support).
> 
> That's exactly what it would need, thanks.
> 
> > I guess until that feature is
> > available you can just use a normal addon and only use one scanner yes?
> 
> Good idea, for now it can just open the first SANE device it finds.
> It's far from optimal of course, but realistically I'm sure it'll be
> fine for most people, since who has two scanners plugged in at once?

I'm actually not sure that's what you need / want. If you're trying to
implement the scanner button hal addon as I detailed here (which I think
would be great)

http://lists.alioth.debian.org/pipermail/sane-devel/2007-March/018864.html

you really want an addon _per_ scanner; I mean, just because one libsane
app is using scanner A, it doesn't mean that we shouldn't run the addon
for scanner B. Or maybe you're trying to do something else?

     David