From f4d5d151aa2a9201a0844e3081d5428a941d2eef Mon Sep 17 00:00:00 2001
From: Wu Jian Gang <wujiangang@espressif.com>
Date: Tue, 17 Jan 2017 16:52:42 +0800
Subject: [PATCH] esp32: add get idf version api

---
 components/esp32/include/esp_system.h | 7 ++++++-
 components/esp32/system_api.c         | 4 ++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/components/esp32/include/esp_system.h b/components/esp32/include/esp_system.h
index e1f46de803..30701761ad 100644
--- a/components/esp32/include/esp_system.h
+++ b/components/esp32/include/esp_system.h
@@ -124,7 +124,12 @@ esp_err_t system_efuse_read_mac(uint8_t mac[6]) __attribute__ ((deprecated));
  */
 const char* system_get_sdk_version(void)  __attribute__ ((deprecated));
 
-
+/**
+ * Get IDF version
+ *
+ * @return constant string from IDF_VER
+ */
+const char* esp_get_idf_version(void);
 
 #ifdef __cplusplus
 }
diff --git a/components/esp32/system_api.c b/components/esp32/system_api.c
index 2f834a9eac..d984af78a7 100644
--- a/components/esp32/system_api.c
+++ b/components/esp32/system_api.c
@@ -179,4 +179,8 @@ const char* system_get_sdk_version(void)
     return "master";
 }
 
+const char* esp_get_idf_version(void)
+{
+    return IDF_VER;
+}