I have tried this, nothing happens when I run it:
[ben@catull-mnj brscan-skey]$ ./brscan-skey
[ben@catull-mnj brscan-skey]$ sudo ./brscan-skey
[sudo] Passwort für ben:
[ben@catull-mnj brscan-skey]$
EDIT: also tried adding to $PATH, still nothing:
[ben@catull-mnj brscan-skey]$ export PATH="/opt/brother/scanner/brscan-skey/:$PATH"
[ben@catull-mnj brscan-skey]$ brscan-skey
At least I managed to make XSane scan me all the pages from the ADF and save as multi-page-PDF, so there’s a workaround. Would have loved to make that button do something though