Both rules can be removed since now libsane sets libsane_matched also
for SCSI scanners.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=589751
# digicams with proprietary protocol
ENV{ID_GPHOTO2}=="*?", TAG+="udev-acl"
-# SCSI scanners
-KERNEL=="sg[0-9]*", ATTRS{type}=="6", TAG+="udev-acl"
-KERNEL=="sg[0-9]*", ATTRS{type}=="3", ATTRS{vendor}=="HP|EPSON|Epson", TAG+="udev-acl"
-
-# USB scanners
+# SCSI and USB scanners
ENV{libsane_matched}=="yes", TAG+="udev-acl"
# HPLIP devices (necessary for ink level check and HP tool maintenance)