diff --git a/android/hal-msg.h b/android/hal-msg.h
index 3f119de..e325f21 100644
--- a/android/hal-msg.h
+++ b/android/hal-msg.h
@@ -1001,12 +1001,27 @@ struct hal_ev_pan_conn_state {
 #define HAL_HEALTH_APP_DEREG_SUCCESS		0x02
 #define HAL_HEALTH_APP_DEREG_FAILED		0x03
 
+#define HAL_HEALTH_CHANNEL_CONNECTING		0x00
+#define HAL_HEALTH_CHANNEL_CONNECTED		0x01
+#define HAL_HEALTH_CHANNEL_DISCONNECTING	0x02
+#define HAL_HEALTH_CHANNEL_DISCONNECTED		0x03
+#define HAL_HEALTH_CHANNEL_DESTROYED		0x04
+
 #define HAL_EV_HEALTH_APP_REG_STATE		0x81
 struct hal_ev_health_app_reg_state {
 	uint16_t id;
 	uint8_t  state;
 } __attribute__((packed));
 
+#define HAL_EV_HEALTH_CHANNEL_STATE		0x82
+struct hal_ev_health_channel_state {
+	uint16_t app_id;
+	uint8_t  bdaddr[6];
+	uint8_t  mdep_index;
+	uint16_t channel_id;
+	uint8_t  channel_state;
+} __attribute__((packed));
+
 #define HAL_A2DP_STATE_DISCONNECTED		0x00
 #define HAL_A2DP_STATE_CONNECTING		0x01
 #define HAL_A2DP_STATE_CONNECTED		0x02