diff --git a/devices/esp8266/esp8266.c b/devices/esp8266/esp8266.c
index 732700c3..cd1becde 100644
--- a/devices/esp8266/esp8266.c
+++ b/devices/esp8266/esp8266.c
@@ -35,7 +35,7 @@ static int esp8266_echo_close(void)
     return -1;
 }
 
-static int esp8266_net_mode_set(sal_net_mode_t mode)
+static int esp8266_net_mode_set(esp8266_net_mode_t mode)
 {
     int try = 0;
     char *cmd = NULL;
@@ -65,7 +65,7 @@ static int esp8266_net_mode_set(sal_net_mode_t mode)
     return -1;
 }
 
-static int esp8266_send_mode_set(sal_send_mode_t mode)
+static int esp8266_send_mode_set(esp8266_send_mode_t mode)
 {
     int try = 0;
     at_echo_t echo;
@@ -80,7 +80,7 @@ static int esp8266_send_mode_set(sal_send_mode_t mode)
     return -1;
 }
 
-static int esp8266_multilink_set(sal_multilink_state_t state)
+static int esp8266_multilink_set(esp8266_multilink_state_t state)
 {
     int try = 0;
     at_echo_t echo;
diff --git a/devices/esp8266/esp8266.h b/devices/esp8266/esp8266.h
index 2e8370a7..3d76a089 100644
--- a/devices/esp8266/esp8266.h
+++ b/devices/esp8266/esp8266.h
@@ -20,21 +20,21 @@
 
 #include "tos_hal.h"
 
-typedef enum sal_net_mode {
+typedef enum esp8266_net_mode {
     SAL_NET_MODE_STA,
     SAL_NET_MODE_AP,
     SAL_NET_MODE_STA_AP,
-} sal_net_mode_t ;
+} esp8266_net_mode_t ;
 
-typedef enum sal_send_mode {
+typedef enum esp8266_send_mode {
     SAL_SEND_MODE_NORMAL,
     SAL_SEND_MODE_TRANSPARENT,
-} sal_send_mode_t;
+} esp8266_send_mode_t;
 
-typedef enum sal_multilink_state {
+typedef enum esp8266_multilink_state {
     SAL_MULTILINK_STATE_ENABLE,
     SAL_MULTILINK_STATE_DISABLE,
-} sal_multilink_state_t;
+} esp8266_multilink_state_t;
 
 int esp8266_sal_init(hal_uart_port_t uart_port);