+static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
+{
+ if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
+ parser->global.report_size == 8)
+ parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
+}
+
+static void hid_scan_collection(struct hid_parser *parser, unsigned type)
+{
+ struct hid_device *hid = parser->device;
+
+ if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
+ type == HID_COLLECTION_PHYSICAL)
+ hid->group = HID_GROUP_SENSOR_HUB;
+}
+
+static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
+{
+ __u32 data;
+ int i;
+
+ data = item_udata(item);
+
+ switch (item->tag) {
+ case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
+ hid_scan_collection(parser, data & 0xff);
+ break;
+ case HID_MAIN_ITEM_TAG_END_COLLECTION:
+ break;
+ case HID_MAIN_ITEM_TAG_INPUT:
+ for (i = 0; i < parser->local.usage_index; i++)
+ hid_scan_input_usage(parser, parser->local.usage[i]);
+ break;
+ case HID_MAIN_ITEM_TAG_OUTPUT:
+ break;
+ case HID_MAIN_ITEM_TAG_FEATURE:
+ for (i = 0; i < parser->local.usage_index; i++)
+ hid_scan_feature_usage(parser, parser->local.usage[i]);
+ break;
+ }
+
+ /* Reset the local parser environment */
+ memset(&parser->local, 0, sizeof(parser->local));
+
+ return 0;
+}
+