// MESSAGE FOLLOW_TARGET PACKING #define MAVLINK_MSG_ID_FOLLOW_TARGET 144 typedef struct MAVLINK_PACKED __mavlink_follow_target_t { uint64_t timestamp; /*< Timestamp in milliseconds since system boot*/ uint64_t custom_state; /*< button states or switches of a tracker device*/ int32_t lat; /*< Latitude (WGS84), in degrees * 1E7*/ int32_t lon; /*< Longitude (WGS84), in degrees * 1E7*/ float alt; /*< AMSL, in meters*/ float vel[3]; /*< target velocity (0,0,0) for unknown*/ float acc[3]; /*< linear target acceleration (0,0,0) for unknown*/ float attitude_q[4]; /*< (1 0 0 0 for unknown)*/ float rates[3]; /*< (0 0 0 for unknown)*/ float position_cov[3]; /*< eph epv*/ uint8_t est_capabilities; /*< bit positions for tracker reporting capabilities (POS = 0, VEL = 1, ACCEL = 2, ATT + RATES = 3)*/ } mavlink_follow_target_t; #define MAVLINK_MSG_ID_FOLLOW_TARGET_LEN 93 #define MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN 93 #define MAVLINK_MSG_ID_144_LEN 93 #define MAVLINK_MSG_ID_144_MIN_LEN 93 #define MAVLINK_MSG_ID_FOLLOW_TARGET_CRC 127 #define MAVLINK_MSG_ID_144_CRC 127 #define MAVLINK_MSG_FOLLOW_TARGET_FIELD_VEL_LEN 3 #define MAVLINK_MSG_FOLLOW_TARGET_FIELD_ACC_LEN 3 #define MAVLINK_MSG_FOLLOW_TARGET_FIELD_ATTITUDE_Q_LEN 4 #define MAVLINK_MSG_FOLLOW_TARGET_FIELD_RATES_LEN 3 #define MAVLINK_MSG_FOLLOW_TARGET_FIELD_POSITION_COV_LEN 3 #if MAVLINK_COMMAND_24BIT #define MAVLINK_MESSAGE_INFO_FOLLOW_TARGET { \ 144, \ "FOLLOW_TARGET", \ 11, \ { { "timestamp", NULL, MAVLINK_TYPE_UINT64_T, 0, 0, offsetof(mavlink_follow_target_t, timestamp) }, \ { "custom_state", NULL, MAVLINK_TYPE_UINT64_T, 0, 8, offsetof(mavlink_follow_target_t, custom_state) }, \ { "lat", NULL, MAVLINK_TYPE_INT32_T, 0, 16, offsetof(mavlink_follow_target_t, lat) }, \ { "lon", NULL, MAVLINK_TYPE_INT32_T, 0, 20, offsetof(mavlink_follow_target_t, lon) }, \ { "alt", NULL, MAVLINK_TYPE_FLOAT, 0, 24, offsetof(mavlink_follow_target_t, alt) }, \ { "vel", NULL, MAVLINK_TYPE_FLOAT, 3, 28, offsetof(mavlink_follow_target_t, vel) }, \ { "acc", NULL, MAVLINK_TYPE_FLOAT, 3, 40, offsetof(mavlink_follow_target_t, acc) }, \ { "attitude_q", NULL, MAVLINK_TYPE_FLOAT, 4, 52, offsetof(mavlink_follow_target_t, attitude_q) }, \ { "rates", NULL, MAVLINK_TYPE_FLOAT, 3, 68, offsetof(mavlink_follow_target_t, rates) }, \ { "position_cov", NULL, MAVLINK_TYPE_FLOAT, 3, 80, offsetof(mavlink_follow_target_t, position_cov) }, \ { "est_capabilities", NULL, MAVLINK_TYPE_UINT8_T, 0, 92, offsetof(mavlink_follow_target_t, est_capabilities) }, \ } \ } #else #define MAVLINK_MESSAGE_INFO_FOLLOW_TARGET { \ "FOLLOW_TARGET", \ 11, \ { { "timestamp", NULL, MAVLINK_TYPE_UINT64_T, 0, 0, offsetof(mavlink_follow_target_t, timestamp) }, \ { "custom_state", NULL, MAVLINK_TYPE_UINT64_T, 0, 8, offsetof(mavlink_follow_target_t, custom_state) }, \ { "lat", NULL, MAVLINK_TYPE_INT32_T, 0, 16, offsetof(mavlink_follow_target_t, lat) }, \ { "lon", NULL, MAVLINK_TYPE_INT32_T, 0, 20, offsetof(mavlink_follow_target_t, lon) }, \ { "alt", NULL, MAVLINK_TYPE_FLOAT, 0, 24, offsetof(mavlink_follow_target_t, alt) }, \ { "vel", NULL, MAVLINK_TYPE_FLOAT, 3, 28, offsetof(mavlink_follow_target_t, vel) }, \ { "acc", NULL, MAVLINK_TYPE_FLOAT, 3, 40, offsetof(mavlink_follow_target_t, acc) }, \ { "attitude_q", NULL, MAVLINK_TYPE_FLOAT, 4, 52, offsetof(mavlink_follow_target_t, attitude_q) }, \ { "rates", NULL, MAVLINK_TYPE_FLOAT, 3, 68, offsetof(mavlink_follow_target_t, rates) }, \ { "position_cov", NULL, MAVLINK_TYPE_FLOAT, 3, 80, offsetof(mavlink_follow_target_t, position_cov) }, \ { "est_capabilities", NULL, MAVLINK_TYPE_UINT8_T, 0, 92, offsetof(mavlink_follow_target_t, est_capabilities) }, \ } \ } #endif /** * @brief Pack a follow_target message * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param msg The MAVLink message to compress the data into * * @param timestamp Timestamp in milliseconds since system boot * @param est_capabilities bit positions for tracker reporting capabilities (POS = 0, VEL = 1, ACCEL = 2, ATT + RATES = 3) * @param lat Latitude (WGS84), in degrees * 1E7 * @param lon Longitude (WGS84), in degrees * 1E7 * @param alt AMSL, in meters * @param vel target velocity (0,0,0) for unknown * @param acc linear target acceleration (0,0,0) for unknown * @param attitude_q (1 0 0 0 for unknown) * @param rates (0 0 0 for unknown) * @param position_cov eph epv * @param custom_state button states or switches of a tracker device * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_follow_target_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, uint64_t timestamp, uint8_t est_capabilities, int32_t lat, int32_t lon, float alt, const float *vel, const float *acc, const float *attitude_q, const float *rates, const float *position_cov, uint64_t custom_state) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS char buf[MAVLINK_MSG_ID_FOLLOW_TARGET_LEN]; _mav_put_uint64_t(buf, 0, timestamp); _mav_put_uint64_t(buf, 8, custom_state); _mav_put_int32_t(buf, 16, lat); _mav_put_int32_t(buf, 20, lon); _mav_put_float(buf, 24, alt); _mav_put_uint8_t(buf, 92, est_capabilities); _mav_put_float_array(buf, 28, vel, 3); _mav_put_float_array(buf, 40, acc, 3); _mav_put_float_array(buf, 52, attitude_q, 4); _mav_put_float_array(buf, 68, rates, 3); _mav_put_float_array(buf, 80, position_cov, 3); memcpy(_MAV_PAYLOAD_NON_CONST(msg), buf, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN); #else mavlink_follow_target_t packet; packet.timestamp = timestamp; packet.custom_state = custom_state; packet.lat = lat; packet.lon = lon; packet.alt = alt; packet.est_capabilities = est_capabilities; mav_array_memcpy(packet.vel, vel, sizeof(float)*3); mav_array_memcpy(packet.acc, acc, sizeof(float)*3); mav_array_memcpy(packet.attitude_q, attitude_q, sizeof(float)*4); mav_array_memcpy(packet.rates, rates, sizeof(float)*3); mav_array_memcpy(packet.position_cov, position_cov, sizeof(float)*3); memcpy(_MAV_PAYLOAD_NON_CONST(msg), &packet, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN); #endif msg->msgid = MAVLINK_MSG_ID_FOLLOW_TARGET; return mavlink_finalize_message(msg, system_id, component_id, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); } /** * @brief Pack a follow_target message on a channel * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param chan The MAVLink channel this message will be sent over * @param msg The MAVLink message to compress the data into * @param timestamp Timestamp in milliseconds since system boot * @param est_capabilities bit positions for tracker reporting capabilities (POS = 0, VEL = 1, ACCEL = 2, ATT + RATES = 3) * @param lat Latitude (WGS84), in degrees * 1E7 * @param lon Longitude (WGS84), in degrees * 1E7 * @param alt AMSL, in meters * @param vel target velocity (0,0,0) for unknown * @param acc linear target acceleration (0,0,0) for unknown * @param attitude_q (1 0 0 0 for unknown) * @param rates (0 0 0 for unknown) * @param position_cov eph epv * @param custom_state button states or switches of a tracker device * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_follow_target_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan, mavlink_message_t* msg, uint64_t timestamp,uint8_t est_capabilities,int32_t lat,int32_t lon,float alt,const float *vel,const float *acc,const float *attitude_q,const float *rates,const float *position_cov,uint64_t custom_state) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS char buf[MAVLINK_MSG_ID_FOLLOW_TARGET_LEN]; _mav_put_uint64_t(buf, 0, timestamp); _mav_put_uint64_t(buf, 8, custom_state); _mav_put_int32_t(buf, 16, lat); _mav_put_int32_t(buf, 20, lon); _mav_put_float(buf, 24, alt); _mav_put_uint8_t(buf, 92, est_capabilities); _mav_put_float_array(buf, 28, vel, 3); _mav_put_float_array(buf, 40, acc, 3); _mav_put_float_array(buf, 52, attitude_q, 4); _mav_put_float_array(buf, 68, rates, 3); _mav_put_float_array(buf, 80, position_cov, 3); memcpy(_MAV_PAYLOAD_NON_CONST(msg), buf, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN); #else mavlink_follow_target_t packet; packet.timestamp = timestamp; packet.custom_state = custom_state; packet.lat = lat; packet.lon = lon; packet.alt = alt; packet.est_capabilities = est_capabilities; mav_array_memcpy(packet.vel, vel, sizeof(float)*3); mav_array_memcpy(packet.acc, acc, sizeof(float)*3); mav_array_memcpy(packet.attitude_q, attitude_q, sizeof(float)*4); mav_array_memcpy(packet.rates, rates, sizeof(float)*3); mav_array_memcpy(packet.position_cov, position_cov, sizeof(float)*3); memcpy(_MAV_PAYLOAD_NON_CONST(msg), &packet, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN); #endif msg->msgid = MAVLINK_MSG_ID_FOLLOW_TARGET; return mavlink_finalize_message_chan(msg, system_id, component_id, chan, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); } /** * @brief Encode a follow_target struct * * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param msg The MAVLink message to compress the data into * @param follow_target C-struct to read the message contents from */ static inline uint16_t mavlink_msg_follow_target_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, const mavlink_follow_target_t* follow_target) { return mavlink_msg_follow_target_pack(system_id, component_id, msg, follow_target->timestamp, follow_target->est_capabilities, follow_target->lat, follow_target->lon, follow_target->alt, follow_target->vel, follow_target->acc, follow_target->attitude_q, follow_target->rates, follow_target->position_cov, follow_target->custom_state); } /** * @brief Encode a follow_target struct on a channel * * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param chan The MAVLink channel this message will be sent over * @param msg The MAVLink message to compress the data into * @param follow_target C-struct to read the message contents from */ static inline uint16_t mavlink_msg_follow_target_encode_chan(uint8_t system_id, uint8_t component_id, uint8_t chan, mavlink_message_t* msg, const mavlink_follow_target_t* follow_target) { return mavlink_msg_follow_target_pack_chan(system_id, component_id, chan, msg, follow_target->timestamp, follow_target->est_capabilities, follow_target->lat, follow_target->lon, follow_target->alt, follow_target->vel, follow_target->acc, follow_target->attitude_q, follow_target->rates, follow_target->position_cov, follow_target->custom_state); } /** * @brief Send a follow_target message * @param chan MAVLink channel to send the message * * @param timestamp Timestamp in milliseconds since system boot * @param est_capabilities bit positions for tracker reporting capabilities (POS = 0, VEL = 1, ACCEL = 2, ATT + RATES = 3) * @param lat Latitude (WGS84), in degrees * 1E7 * @param lon Longitude (WGS84), in degrees * 1E7 * @param alt AMSL, in meters * @param vel target velocity (0,0,0) for unknown * @param acc linear target acceleration (0,0,0) for unknown * @param attitude_q (1 0 0 0 for unknown) * @param rates (0 0 0 for unknown) * @param position_cov eph epv * @param custom_state button states or switches of a tracker device */ #ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS static inline void mavlink_msg_follow_target_send(mavlink_channel_t chan, uint64_t timestamp, uint8_t est_capabilities, int32_t lat, int32_t lon, float alt, const float *vel, const float *acc, const float *attitude_q, const float *rates, const float *position_cov, uint64_t custom_state) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS char buf[MAVLINK_MSG_ID_FOLLOW_TARGET_LEN]; _mav_put_uint64_t(buf, 0, timestamp); _mav_put_uint64_t(buf, 8, custom_state); _mav_put_int32_t(buf, 16, lat); _mav_put_int32_t(buf, 20, lon); _mav_put_float(buf, 24, alt); _mav_put_uint8_t(buf, 92, est_capabilities); _mav_put_float_array(buf, 28, vel, 3); _mav_put_float_array(buf, 40, acc, 3); _mav_put_float_array(buf, 52, attitude_q, 4); _mav_put_float_array(buf, 68, rates, 3); _mav_put_float_array(buf, 80, position_cov, 3); _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_FOLLOW_TARGET, buf, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); #else mavlink_follow_target_t packet; packet.timestamp = timestamp; packet.custom_state = custom_state; packet.lat = lat; packet.lon = lon; packet.alt = alt; packet.est_capabilities = est_capabilities; mav_array_memcpy(packet.vel, vel, sizeof(float)*3); mav_array_memcpy(packet.acc, acc, sizeof(float)*3); mav_array_memcpy(packet.attitude_q, attitude_q, sizeof(float)*4); mav_array_memcpy(packet.rates, rates, sizeof(float)*3); mav_array_memcpy(packet.position_cov, position_cov, sizeof(float)*3); _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_FOLLOW_TARGET, (const char *)&packet, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); #endif } /** * @brief Send a follow_target message * @param chan MAVLink channel to send the message * @param struct The MAVLink struct to serialize */ static inline void mavlink_msg_follow_target_send_struct(mavlink_channel_t chan, const mavlink_follow_target_t* follow_target) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS mavlink_msg_follow_target_send(chan, follow_target->timestamp, follow_target->est_capabilities, follow_target->lat, follow_target->lon, follow_target->alt, follow_target->vel, follow_target->acc, follow_target->attitude_q, follow_target->rates, follow_target->position_cov, follow_target->custom_state); #else _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_FOLLOW_TARGET, (const char *)follow_target, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); #endif } #if MAVLINK_MSG_ID_FOLLOW_TARGET_LEN <= MAVLINK_MAX_PAYLOAD_LEN /* This varient of _send() can be used to save stack space by re-using memory from the receive buffer. The caller provides a mavlink_message_t which is the size of a full mavlink message. This is usually the receive buffer for the channel, and allows a reply to an incoming message with minimum stack space usage. */ static inline void mavlink_msg_follow_target_send_buf(mavlink_message_t *msgbuf, mavlink_channel_t chan, uint64_t timestamp, uint8_t est_capabilities, int32_t lat, int32_t lon, float alt, const float *vel, const float *acc, const float *attitude_q, const float *rates, const float *position_cov, uint64_t custom_state) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS char *buf = (char *)msgbuf; _mav_put_uint64_t(buf, 0, timestamp); _mav_put_uint64_t(buf, 8, custom_state); _mav_put_int32_t(buf, 16, lat); _mav_put_int32_t(buf, 20, lon); _mav_put_float(buf, 24, alt); _mav_put_uint8_t(buf, 92, est_capabilities); _mav_put_float_array(buf, 28, vel, 3); _mav_put_float_array(buf, 40, acc, 3); _mav_put_float_array(buf, 52, attitude_q, 4); _mav_put_float_array(buf, 68, rates, 3); _mav_put_float_array(buf, 80, position_cov, 3); _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_FOLLOW_TARGET, buf, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); #else mavlink_follow_target_t *packet = (mavlink_follow_target_t *)msgbuf; packet->timestamp = timestamp; packet->custom_state = custom_state; packet->lat = lat; packet->lon = lon; packet->alt = alt; packet->est_capabilities = est_capabilities; mav_array_memcpy(packet->vel, vel, sizeof(float)*3); mav_array_memcpy(packet->acc, acc, sizeof(float)*3); mav_array_memcpy(packet->attitude_q, attitude_q, sizeof(float)*4); mav_array_memcpy(packet->rates, rates, sizeof(float)*3); mav_array_memcpy(packet->position_cov, position_cov, sizeof(float)*3); _mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_FOLLOW_TARGET, (const char *)packet, MAVLINK_MSG_ID_FOLLOW_TARGET_MIN_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN, MAVLINK_MSG_ID_FOLLOW_TARGET_CRC); #endif } #endif #endif // MESSAGE FOLLOW_TARGET UNPACKING /** * @brief Get field timestamp from follow_target message * * @return Timestamp in milliseconds since system boot */ static inline uint64_t mavlink_msg_follow_target_get_timestamp(const mavlink_message_t* msg) { return _MAV_RETURN_uint64_t(msg, 0); } /** * @brief Get field est_capabilities from follow_target message * * @return bit positions for tracker reporting capabilities (POS = 0, VEL = 1, ACCEL = 2, ATT + RATES = 3) */ static inline uint8_t mavlink_msg_follow_target_get_est_capabilities(const mavlink_message_t* msg) { return _MAV_RETURN_uint8_t(msg, 92); } /** * @brief Get field lat from follow_target message * * @return Latitude (WGS84), in degrees * 1E7 */ static inline int32_t mavlink_msg_follow_target_get_lat(const mavlink_message_t* msg) { return _MAV_RETURN_int32_t(msg, 16); } /** * @brief Get field lon from follow_target message * * @return Longitude (WGS84), in degrees * 1E7 */ static inline int32_t mavlink_msg_follow_target_get_lon(const mavlink_message_t* msg) { return _MAV_RETURN_int32_t(msg, 20); } /** * @brief Get field alt from follow_target message * * @return AMSL, in meters */ static inline float mavlink_msg_follow_target_get_alt(const mavlink_message_t* msg) { return _MAV_RETURN_float(msg, 24); } /** * @brief Get field vel from follow_target message * * @return target velocity (0,0,0) for unknown */ static inline uint16_t mavlink_msg_follow_target_get_vel(const mavlink_message_t* msg, float *vel) { return _MAV_RETURN_float_array(msg, vel, 3, 28); } /** * @brief Get field acc from follow_target message * * @return linear target acceleration (0,0,0) for unknown */ static inline uint16_t mavlink_msg_follow_target_get_acc(const mavlink_message_t* msg, float *acc) { return _MAV_RETURN_float_array(msg, acc, 3, 40); } /** * @brief Get field attitude_q from follow_target message * * @return (1 0 0 0 for unknown) */ static inline uint16_t mavlink_msg_follow_target_get_attitude_q(const mavlink_message_t* msg, float *attitude_q) { return _MAV_RETURN_float_array(msg, attitude_q, 4, 52); } /** * @brief Get field rates from follow_target message * * @return (0 0 0 for unknown) */ static inline uint16_t mavlink_msg_follow_target_get_rates(const mavlink_message_t* msg, float *rates) { return _MAV_RETURN_float_array(msg, rates, 3, 68); } /** * @brief Get field position_cov from follow_target message * * @return eph epv */ static inline uint16_t mavlink_msg_follow_target_get_position_cov(const mavlink_message_t* msg, float *position_cov) { return _MAV_RETURN_float_array(msg, position_cov, 3, 80); } /** * @brief Get field custom_state from follow_target message * * @return button states or switches of a tracker device */ static inline uint64_t mavlink_msg_follow_target_get_custom_state(const mavlink_message_t* msg) { return _MAV_RETURN_uint64_t(msg, 8); } /** * @brief Decode a follow_target message into a struct * * @param msg The message to decode * @param follow_target C-struct to decode the message contents into */ static inline void mavlink_msg_follow_target_decode(const mavlink_message_t* msg, mavlink_follow_target_t* follow_target) { #if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS follow_target->timestamp = mavlink_msg_follow_target_get_timestamp(msg); follow_target->custom_state = mavlink_msg_follow_target_get_custom_state(msg); follow_target->lat = mavlink_msg_follow_target_get_lat(msg); follow_target->lon = mavlink_msg_follow_target_get_lon(msg); follow_target->alt = mavlink_msg_follow_target_get_alt(msg); mavlink_msg_follow_target_get_vel(msg, follow_target->vel); mavlink_msg_follow_target_get_acc(msg, follow_target->acc); mavlink_msg_follow_target_get_attitude_q(msg, follow_target->attitude_q); mavlink_msg_follow_target_get_rates(msg, follow_target->rates); mavlink_msg_follow_target_get_position_cov(msg, follow_target->position_cov); follow_target->est_capabilities = mavlink_msg_follow_target_get_est_capabilities(msg); #else uint8_t len = msg->len < MAVLINK_MSG_ID_FOLLOW_TARGET_LEN? msg->len : MAVLINK_MSG_ID_FOLLOW_TARGET_LEN; memset(follow_target, 0, MAVLINK_MSG_ID_FOLLOW_TARGET_LEN); memcpy(follow_target, _MAV_PAYLOAD(msg), len); #endif }