HID: Delay opening HID device

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / hid-sensor-hub.h

diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index 32ba451..a265af2 100644 (file)
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -47,11 +47,13 @@ struct hid_sensor_hub_attribute_info {
  * @hdev:              Stores the hid instance.
  * @vendor_id:         Vendor id of hub device.
  * @product_id:                Product id of hub device.
+ * @ref_cnt:           Number of MFD clients have opened this device
  */
 struct hid_sensor_hub_device {
        struct hid_device *hdev;
        u32 vendor_id;
        u32 product_id;
+       int ref_cnt;
 };
 
 /**
@@ -74,6 +76,22 @@ struct hid_sensor_hub_callbacks {
                         void *priv);
 };
 
+/**
+* sensor_hub_device_open() - Open hub device
+* @hsdev:      Hub device instance.
+*
+* Used to open hid device for sensor hub.
+*/
+int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev);
+
+/**
+* sensor_hub_device_clode() - Close hub device
+* @hsdev:      Hub device instance.
+*
+* Used to clode hid device for sensor hub.
+*/
+void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev);
+
 /* Registration functions */
 
 /**