1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index dbed2524fd47..f1aed5bbd000 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2126,6 +2126,99 @@ void hid_hw_close(struct hid_device *hdev)
 }
 EXPORT_SYMBOL_GPL(hid_hw_close);
 
+/**
+ * hid_hw_request - send report request to device
+ *
+ * @hdev: hid device
+ * @report: report to send
+ * @reqtype: hid request type
+ */
+void hid_hw_request(struct hid_device *hdev,
+		    struct hid_report *report, int reqtype)
+{
+	if (hdev->ll_driver->request)
+		return hdev->ll_driver->request(hdev, report, reqtype);
+
+	__hid_request(hdev, report, reqtype);
+}
+EXPORT_SYMBOL_GPL(hid_hw_request);
+
+/**
+ * hid_hw_raw_request - send report request to device
+ *
+ * @hdev: hid device
+ * @reportnum: report ID
+ * @buf: in/out data to transfer
+ * @len: length of buf
+ * @rtype: HID report type
+ * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
+ *
+ * Return: count of data transferred, negative if error
+ *
+ * Same behavior as hid_hw_request, but with raw buffers instead.
+ */
+int hid_hw_raw_request(struct hid_device *hdev,
+		       unsigned char reportnum, __u8 *buf,
+		       size_t len, unsigned char rtype, int reqtype)
+{
+	if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
+		return -EINVAL;
+
+	return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
+					    rtype, reqtype);
+}
+EXPORT_SYMBOL_GPL(hid_hw_raw_request);
+
+/**
+ * hid_hw_output_report - send output report to device
+ *
+ * @hdev: hid device
+ * @buf: raw data to transfer
+ * @len: length of buf
+ *
+ * Return: count of data transferred, negative if error
+ */
+int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len)
+{
+	if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
+		return -EINVAL;
+
+	if (hdev->ll_driver->output_report)
+		return hdev->ll_driver->output_report(hdev, buf, len);
+
+	return -ENOSYS;
+}
+EXPORT_SYMBOL_GPL(hid_hw_output_report);
+
+#ifdef CONFIG_PM
+int hid_driver_suspend(struct hid_device *hdev, pm_message_t state)
+{
+	if (hdev->driver && hdev->driver->suspend)
+		return hdev->driver->suspend(hdev, state);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hid_driver_suspend);
+
+int hid_driver_reset_resume(struct hid_device *hdev)
+{
+	if (hdev->driver && hdev->driver->reset_resume)
+		return hdev->driver->reset_resume(hdev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hid_driver_reset_resume);
+
+int hid_driver_resume(struct hid_device *hdev)
+{
+	if (hdev->driver && hdev->driver->resume)
+		return hdev->driver->resume(hdev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hid_driver_resume);
+#endif /* CONFIG_PM */
+
 struct hid_dynid {
 	struct list_head list;
 	struct hid_device_id id;