Back to previous external backend list, and comment updates

doc/descriptions-external/canon_mfp.desc

@@ -16,7 +16,9 @@
                                   ; :yes or :no
 ;:manpage "sane-template"          ; name of manpage (if it exists)
 :url "http://cweb.canon.jp/drv-upd/bj/other.html#linux";
+:url "http://support-asia.canon-asia.com/";
 :comment "External backend made by canon. As this software contains non-free parts, it can't be included into SANE. If you can't find your model here, please have a look at the canon website which contains the latest list." 
+:comment "Note: these backend are designed by Canon and are part of their proprietary scanning software. They may not work at all with SANE, or with SANE frontends." 
                                   ; comment about the backend
 
 :devicetype :scanner              ; start of a list of devices....
@@ -34,14 +36,38 @@
 :usbid "0x04a9" "0x172b"
 :comment "No report yet."
 
-:model "MP220"
+:model "MP160"
 :status :untested
 :interface "USB"
-:usbid "0x04a9" "0x1722"
+:usbid "0x04a9" "0x1714"
 :comment "No report yet."
 
-:model "MP970"
+:model "MP210"
 :status :untested
 :interface "USB"
-:usbid "0x04a9" "0x1726"
+:usbid "0x04a9" "0x1721"
 :comment "No report yet."
+
+:model "MP510"
+:status :untested
+:interface "USB"
+:usbid "0x04a9" "0x1717"
+:comment "No report yet."
+
+:model "MP520"
+:status :untested
+:interface "USB"
+:usbid "0x04a9" "0x1724"
+:comment "No report yet."
+
+:model "MP600"
+:status :untested
+:interface "USB"
+:usbid "0x04a9" "0x1718"
+:comment "No report yet."
+
+:model "MP610"
+:status :untested
+:interface "USB"
+:usbid "0x04a9" "0x1725"
+:comment "Could not have it working with SANE."