-#define USB_VENDOR 0xa600
-#define USB_PRODUCT 0xa000
-#define USB_DESCRIPTION "ASIX SIGMA"
+/* Experimental support for OMEGA (scan only, operation is ENOIMPL). */
+#define ASIX_WITH_OMEGA 0
+
+#define USB_VENDOR_ASIX 0xa600
+#define USB_PRODUCT_SIGMA 0xa000
+#define USB_PRODUCT_OMEGA 0xa004
+
+enum asix_device_type {
+ ASIX_TYPE_NONE,
+ ASIX_TYPE_SIGMA,
+ ASIX_TYPE_OMEGA,
+};