Added check-usb-chip output.

unsupported/hp-scanjet-3500c.html

@@ -116,6 +116,33 @@ bNumConfigurations    1
     bRefresh          0
     bSynchAddress     0
 found USB scanner (vendor=0x03f0, product=0x2205) at libusb:001:004
+
+--
+<trying to find out which USB chip is used>
+    checking for GT-6801 ...
+    this is not a GT-6801 (bDeviceClass = 0)
+    checking for GT-6816 ...
+    this is not a GT-6816 (bNumEndpoints = 3)
+    checking for MA-1017 ...
+    this is not a MA-1017 (bDeviceClass = 0, bInterfaceClass = 255)
+    checking for MA-1015 ...
+    this is not a MA-1015 (bDeviceClass = 0)
+    checking for MA-1509 ...
+    this is not a MA-1509 (bDeviceClass = 0)
+    checking for LM983[1,2,3] ...
+    this is not a LM983x (bEndpointAddress = 0x81, bmAttributes = 0x2, wMaxPacketSize = 0x40, bInterval = 0x0)
+    checking for GL646 ...
+    this is not a GL646 (bDeviceClass = 0, bInterfaceClass = 255)
+    checking for GL646_HP ...
+    this is not a GL646_HP (bDeviceClass = 0, bInterfaceClass = 255)
+    checking for GL660+GL646 ...
+    this is not a GL660+GL646 (bDeviceClass = 0, bInterfaceClass = 255)
+    checking for GL841 ...
+    this is not a GL841 (bDeviceClass = 0, bInterfaceClass = 255)
+    checking for ICM532B ...
+  check 1, this is not a ICM532B (bDeviceClass = 0, bInterfaceClass = 255)
+<Couldn't determine the type of the USB chip>
+
     </pre>
     
     <h1>Want to add or correct information?</h1>