diff --git a/mbtk/liblynq_lib/src/lynq_gpio.c b/mbtk/liblynq_lib/src/lynq_gpio.c
index 344c011..4dcd694 100755
--- a/mbtk/liblynq_lib/src/lynq_gpio.c
+++ b/mbtk/liblynq_lib/src/lynq_gpio.c
@@ -4,6 +4,7 @@
 #include "fcntl.h"
 #include "mbtk_log.h"
 
+#include <errno.h>
 static int gpio_export(int gpio)
 {
     int index=0;
@@ -32,7 +33,7 @@
     result = write(file,pin_index_buffer,strlen(pin_index_buffer));
     if(result < 0)
     {
-        LOGE("Gpio[%d] export fail.", gpio);
+        LOGE("Gpio[%d] export fail. err = %d", gpio, errno);
         close(file);
         return -1;
     }
@@ -183,7 +184,7 @@
     }
     if(result != 1)
     {
-        LOGE("Set gpio[%d] value fail.", gpio);
+        LOGE("Set gpio[%d] value fail err =%d.", gpio, errno);
         close(file);
         return -1;
     }
@@ -200,13 +201,13 @@
     //UNUSED(value);
     UNUSED(pullsel);
 
-    if (direction != 1 || direction != 0)
+    if (direction != 1 && direction != 0)
     {
         LOGE("[lynq_gpio_init] direction fail.");
         return -1;
     }
 
-    if (value != 1 || value != 0)
+    if (value != 1 && value != 0)
     {
         LOGE("[lynq_gpio_init] value fail.");
         return -1;
@@ -223,8 +224,8 @@
         LOGE("[lynq_gpio_init]gpio_direct_set fail.");
         return -1;
     }
-    
-    if(gpio_value_set(gpio, value))
+
+    if(direction == 1 && (gpio_value_set(gpio, value) != 0))
     {
         LOGE("[lynq_gpio_init]gpio_value_set fail.");
         return -1;