/etc/sane.d/stv680.conf is in libsane-common 1.0.25+git20150528-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | #stv680.conf
#
# AIPTEK stv680 vidcam
usb 0x0553 0x0202
# Konica e-mini
usb 0x04c8 0x0722
# DigitalDream l'espion XS
usb 0x1183 0x0001
#Creative WebCam Go mini
usb 0x041e 0x4007
|