telent/scanner-button

poll the panel buttons on SANE_supported scanners. scanbd but without the d

scanner-button

I want to activate my scanner when someone presses the "Scan" button on its front panel. I don't want to set up scanbd and the scanb "proxy" and saned and all that, I just want something to tell me when the button is pressed. This is that thing.

Building

On Nix, you should be able to nix-build . in this directory. Otherwise, there's a fairly simple Makefile. Note that the SANE backend libraries/header files need to be available.

Usage

1. Run scanimage -L to find out what names the SANE backend has given to the "sensors" on your scanner that correspond to buttons.
2. Decide which of them you are interested in
3. Run scanner-button button1 button2 ... buttonn. If any of them are pressed it will print the button name to standard output
4. Or to poll until one or more requested buttons are pressed, run scanner-button --wait button1 button2 ... buttonn. As soon a it detects any of them are pressed it will print the button name(s) to standard output and then exit.