Drupal Commerce Barcode Scanner module I've installed Barcode module and Commerce Barcode Scanner module. The first is for generete barcodes to products. The second is supposed to read barcode labels. I couldn't test Commerce Barcode Scanner yet because I don't have a Barcode Scanner by now.

But I've been searched how Commerce Barcode Scanner works and I don't find anything.

Do I have to position cursor in a specific field from front-end or back-end of my site or is really only necessary to stay in some page of my site to Commerce Barcode scanner redirect to the Product Display (as that is the behavior setted up by default in rules)?
You know that only 17 sites currently report using this module? And that last revision is reported to be from 2013-Oct-27? So it is old thing, and hardly used. I advise caution.

This bugreport suggest that all you need to do is to have focus anywhere on your page, and it will work... except when you hit the bug itself.