From 0b1e58d6dd91369302bba646fda77de826cbe47e Mon Sep 17 00:00:00 2001
From: devsaurus <devsaurus@users.noreply.github.com>
Date: Tue, 7 Feb 2017 21:19:40 +0100
Subject: [PATCH] correct portYIELD

---
 components/modules/i2c_hw_master.c | 4 ++--
 components/modules/i2c_hw_slave.c  | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/components/modules/i2c_hw_master.c b/components/modules/i2c_hw_master.c
index 92ff7185..74dc3312 100644
--- a/components/modules/i2c_hw_master.c
+++ b/components/modules/i2c_hw_master.c
@@ -6,6 +6,7 @@
 
 #include "i2c_common.h"
 
+#include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/queue.h"
 #include "esp_task.h"
@@ -325,8 +326,7 @@ int li2c_hw_master_transfer( lua_State *L )
 
     // the transfer task should be unblocked now
     //   (i.e. in eReady state since it can receive from the queue)
-    // block this task briefly to allow switch over to the transfer task (it has higher prio)
-    vTaskDelay( 1 );
+    portYIELD();
 
     // invalidate last job, it's queued now
     job->cmd = NULL;          // don't delete link! it's used by the transfer task
diff --git a/components/modules/i2c_hw_slave.c b/components/modules/i2c_hw_slave.c
index d0274602..e53db11b 100644
--- a/components/modules/i2c_hw_slave.c
+++ b/components/modules/i2c_hw_slave.c
@@ -7,6 +7,7 @@
 
 #include "i2c_common.h"
 
+#include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/queue.h"
 #include "esp_task.h"