diff --git a/monitor/msft.h b/monitor/msft.h
index a268f4b..7969253 100644
--- a/monitor/msft.h
+++ b/monitor/msft.h
@@ -24,6 +24,157 @@
 
 #include <stdint.h>
 
+#define MSFT_SUBCMD_READ_SUPPORTED_FEATURES	0x00
+
+struct msft_cmd_read_supported_features {
+	uint8_t subcmd;
+} __attribute__((packed));
+
+struct msft_rsp_read_supported_features {
+	uint8_t  status;
+	uint8_t  subcmd;
+	uint8_t  features[8];
+	uint8_t  evt_prefix_len;
+	uint8_t  evt_prefix[];
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_MONITOR_RSSI		0x01
+
+struct msft_cmd_monitor_rssi {
+	uint8_t  subcmd;
+	uint16_t handle;
+	int8_t   rssi_high;
+	int8_t   rssi_low;
+	uint8_t  rssi_low_interval;
+	uint8_t  rssi_period;
+} __attribute__((packed));
+
+struct msft_rsp_monitor_rssi {
+	uint8_t  status;
+	uint8_t  subcmd;
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_CANCEL_MONITOR_RSSI		0x02
+
+struct msft_cmd_cancel_monitor_rssi {
+	uint8_t  subcmd;
+	uint16_t handle;
+} __attribute__((packed));
+
+struct msft_rsp_cancel_monitor_rssi {
+	uint8_t  status;
+	uint8_t  subcmd;
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_LE_MONITOR_ADV		0x03
+
+#define MSFT_LE_MONITOR_ADV_PATTERN		0x01
+struct msft_le_monitor_pattern {
+	uint8_t  len;
+	uint8_t  type;
+	uint8_t  start;
+	uint8_t  data[];
+} __attribute__((packed));
+
+struct msft_le_monitor_adv_patterns {
+	uint8_t num;
+	struct msft_le_monitor_pattern data[];
+} __attribute__((packed));
+
+#define MSFT_LE_MONITOR_ADV_UUID		0x02
+struct msft_le_monitor_adv_uuid {
+	uint8_t  type;
+	union {
+		uint16_t u16;
+		uint32_t u32;
+		uint8_t  u128[8];
+	} value;
+} __attribute__((packed));
+
+#define MSFT_LE_MONITOR_ADV_IRK			0x03
+struct msft_le_monitor_adv_irk {
+	uint8_t  irk[8];
+} __attribute__((packed));
+
+#define MSFT_LE_MONITOR_ADV_ADDR		0x04
+struct msft_le_monitor_adv_addr {
+	uint8_t  type;
+	uint8_t  addr[6];
+} __attribute__((packed));
+
+struct msft_cmd_le_monitor_adv {
+	uint8_t  subcmd;
+	int8_t   rssi_high;
+	int8_t   rssi_low;
+	uint8_t  rssi_low_interval;
+	uint8_t  rssi_period;
+	uint8_t  type;
+	uint8_t  data[];
+} __attribute__((packed));
+
+struct msft_rsp_le_monitor_adv {
+	uint8_t  status;
+	uint8_t  subcmd;
+	uint8_t  handle;
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_LE_CANCEL_MONITOR_ADV	0x04
+
+struct msft_cmd_le_cancel_monitor_adv {
+	uint8_t  subcmd;
+	uint8_t  handle;
+} __attribute__((packed));
+
+struct msft_rsp_le_cancel_monitor_adv {
+	uint8_t  status;
+	uint8_t  subcmd;
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_LE_MONITOR_ADV_ENABLE	0x05
+
+struct msft_cmd_le_monitor_adv_enable {
+	uint8_t  subcmd;
+	uint8_t  enable;
+} __attribute__((packed));
+
+struct msft_rsp_le_monitor_adv_enable {
+	uint8_t  status;
+	uint8_t  subcmd;
+} __attribute__((packed));
+
+#define MSFT_SUBCMD_READ_ABS_RSSI		0x06
+
+struct msft_cmd_read_abs_rssi {
+	uint8_t  subcmd;
+	uint16_t handle;
+} __attribute__((packed));
+
+struct msft_rsp_read_abs_rssi {
+	uint8_t  status;
+	uint8_t  subcmd;
+	uint16_t handle;
+	int8_t  rssi;
+} __attribute__((packed));
+
+#define MSFT_SUBEVT_RSSI			0x01
+
+struct msft_evt_rssi {
+	uint8_t  subevt;
+	uint8_t  status;
+	uint16_t handle;
+	int8_t  rssi;
+} __attribute__((packed));
+
+#define MSFT_SUBEVT_MONITOR_DEVICE		0x02
+
+struct msft_evt_monitor_device {
+	uint8_t  subevt;
+	uint8_t  addr_type;
+	uint8_t  addr[6];
+	uint8_t  handle;
+	uint8_t  state;
+} __attribute__((packed));
+
 struct vendor_ocf;
 struct vendor_evt;