From cd3f74f3d017f36b6cc1f7cdc91f27ec4203e1cd Mon Sep 17 00:00:00 2001
From: C457 <android.c357@gmail.com>
Date: Wed, 23 Mar 2022 15:55:44 +0100
Subject: [PATCH] hidl: biometrics: fingerprint: Add support for extCmd

* Xiaomi extends fingerprint_device_t by adding a new method called extCmd used to send vendor specific commands

Change-Id: Ic94f7b3fd28f7db81695e47f54ce6fa89248bde9
---
 hidl/biometrics/fingerprint/include/fingerprint.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hidl/biometrics/fingerprint/include/fingerprint.h b/hidl/biometrics/fingerprint/include/fingerprint.h
index 10d8231..62810e7 100644
--- a/hidl/biometrics/fingerprint/include/fingerprint.h
+++ b/hidl/biometrics/fingerprint/include/fingerprint.h
@@ -1,5 +1,6 @@
  /*
   * Copyright (C) 2014 The Android Open Source Project
+  *               2022 The LineageOS Project
   *
  * SPDX-License-Identifier: Apache-2.0
   */
@@ -249,6 +250,11 @@ typedef struct fingerprint_device {
      */
     int (*authenticate)(struct fingerprint_device *dev, uint64_t operation_id, uint32_t gid);
 
+    /*
+     * Xiaomi fingerprint extension command.
+     */
+    int (*extCmd)(struct fingerprint_device* dev, int32_t cmd, int32_t param);
+
     /* Reserved for backward binary compatibility */
     void *reserved[4];
 } fingerprint_device_t;