I want to detect if buttons on my USB scanner (HP Scanjet 8250) are pressed using Debian Linux.
I'm able to scan documents with SANE but I cannot get scanbd/scannerbutton working.
Now I found out that as a workaround I could capture USB traffic using Wireshark 2.0.2 (Linux kernel version: 4.4.0-45) c. But a first test was not successful: I can see traffic when a document is scanned, but I cannot see any traffic if scanner buttons are pressed.
Is it possible at all to detect USB scanner buttons with Wireshark?