+static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
+{
+ struct mt_device *td = hid_get_drvdata(hdev);
+ int ret, size = hid_report_len(report);
+ u8 *buf;
+
+ /*
+ * Only fetch the feature report if initial reports are not already
+ * been retrieved. Currently this is only done for Windows 8 touch
+ * devices.
+ */
+ if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
+ return;
+ if (td->mtclass.name != MT_CLS_WIN_8)
+ return;
+
+ buf = hid_alloc_report_buf(report, GFP_KERNEL);
+ if (!buf)
+ return;
+
+ ret = hid_hw_raw_request(hdev, report->id, buf, size,
+ HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+ if (ret < 0) {
+ dev_warn(&hdev->dev, "failed to fetch feature %d\n",
+ report->id);
+ } else {
+ ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
+ size, 0);
+ if (ret)
+ dev_warn(&hdev->dev, "failed to report feature\n");
+ }
+
+ kfree(buf);
+}
+