Make /dev/sga the default device in snapscan.conf

backend/snapscan.conf

@@ -4,11 +4,11 @@
 # For USB devices, make sure that the name contains 'usb' somewhere, as in
 # '/dev/usbscanner' or '/dev/usb/scanner0'. Do not use a link
 # from /dev/scanner to your USB device.
+# For SCSI, use the generic device (e.g. /dev/sga in Linux).
 
-/dev/usbscanner
-#/dev/scanner
-#/dev/sga
+/dev/sga
+#/dev/usbscanner
 
-# Change to the fully qualified filename of your firmware file, if 
+# Change to the fully qualified filename of your firmware file, if
 # firmware upload is needed by the scanner
 firmware /path/to/your/firmware/file