[sane-devel] HAL and scanners.

[Étienne Bersac]

Hi,

Very interesting, thanks goes to SUSE for working for long time on
scanner integration with udev and HAL.

The HAL callout goal would be simply to compute the SANE device name put
it to HAL device property scanner.sane.device_name . This does not need
any SANE call as long as all backends supports some well known naming
scheme along their own specific naming scheme.

Then, for scanner specific events (paper-in, adf-opened, "mailto" button
pushed, etc.), a HAL addon would fit, but then linking to SANE and
requiring 'scanner' privileges.

That's how it see it for now. Please comments.

Regards,
Étienne.