support starting brand sub-type

product.py

@@ -292,6 +292,10 @@ def getProductByType(argv):
     if not os.path.exists(brand_name):
         os.makedirs(brand_name)
 
+    starting_brand_name = None
+    if len(argv) == 3:
+        starting_brand_name = argv[2]
+
     d = u2.connect_usb('d52196830204')
     print(d.app_current())
     d.freeze_rotation()
@@ -305,7 +309,19 @@ def getProductByType(argv):
 
     scraped_cnt = 0
     with open(brand_name+"/products.csv", 'a+') as f:
-        ftype_names = getAllFilterTypes(d)
+        temp_types = getAllFilterTypes(d)
+
+        ftype_names = []
+        if starting_brand_name is not None:
+            starting_flag = False
+            for temp_type in temp_types:
+                if starting_flag:
+                    ftype_names.append(temp_type)
+                elif temp_type == starting_brand_name:
+                    ftype_names.append(temp_type)
+                    starting_flag = True
+        else:
+            ftype_names = temp_types
         print("All the brand sub-types:")
         for ftype_name in ftype_names:
             print(ftype_name)