autogenerated headers for rev...

autogenerated headers for rev https://github.com/mavlink/mavlink/tree/322e9c88eea82f7c955fb23e1091f29d85baf502

autogenerated headers for rev...
autogenerated headers for rev https://github.com/mavlink/mavlink/tree/322e9c88eea82f7c955fb23e1091f29d85baf502
c90e9e0f · PX4BuildBot · b7e4ed4a · c90e9e0f · c90e9e0f · c90e9e0f
Commit c90e9e0f authored May 05, 2017 by PX4BuildBot
7 changed files
--- a/ASLUAV/ASLUAV.h
+++ b/ASLUAV/ASLUAV.h
@@ -78,7 +78,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -87,15 +87,16 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_INVERTED_FLIGHT=210, /* Change to/from inverted flight |inverted (0=normal, 1=inverted)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -126,7 +127,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */

--- a/ardupilotmega/ardupilotmega.h
+++ b/ardupilotmega/ardupilotmega.h
@@ -94,7 +94,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -103,10 +103,10 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
@@ -114,6 +114,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_GRIPPER=211, /* Mission command to operate EPM gripper |gripper number (a number from 1 to max number of grippers on the vehicle)| gripper action (0=release, 1=grab. See GRIPPER_ACTIONS enum)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_AUTOTUNE_ENABLE=212, /* Enable/disable autotune |enable (1: enable, 0:disable)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -144,7 +145,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */

--- a/autoquad/autoquad.h
+++ b/autoquad/autoquad.h
@@ -122,7 +122,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -131,15 +131,16 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_INVERTED_FLIGHT=210, /* Change to/from inverted flight |inverted (0=normal, 1=inverted)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -170,7 +171,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */

--- a/common/common.h
+++ b/common/common.h
@@ -397,7 +397,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -406,15 +406,16 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_INVERTED_FLIGHT=210, /* Change to/from inverted flight |inverted (0=normal, 1=inverted)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -445,7 +446,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */

--- a/matrixpilot/matrixpilot.h
+++ b/matrixpilot/matrixpilot.h
@@ -95,7 +95,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -104,15 +104,16 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_INVERTED_FLIGHT=210, /* Change to/from inverted flight |inverted (0=normal, 1=inverted)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -143,7 +144,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */

--- a/message_definitions/common.xml
+++ b/message_definitions/common.xml
@@ -992,7 +992,7 @@
        <param index="7">Empty</param>
      </entry>
      <entry value="189" name="MAV_CMD_DO_LAND_START">
-        <description>Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence.</description>
+        <description>Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence.</description>
        <param index="1">Empty</param>
        <param index="2">Empty</param>
        <param index="3">Empty</param>
@@ -1091,7 +1091,7 @@
        <param index="4">Focus Locking, Unlocking or Re-locking</param>
        <param index="5">Shooting Command</param>
        <param index="6">Command Identity</param>
-        <param index="7">Empty</param>
+        <param index="7">Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.</param>
      </entry>
      <!-- Camera Mount Mission Commands Enumeration -->
      <entry value="204" name="MAV_CMD_DO_MOUNT_CONFIGURE">
@@ -1115,9 +1115,9 @@
        <param index="7">MAV_MOUNT_MODE enum value</param>
      </entry>
      <entry value="206" name="MAV_CMD_DO_SET_CAM_TRIGG_DIST">
-        <description>Mission command to set CAM_TRIGG_DIST for this flight</description>
+        <description>Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera.</description>
-        <param index="1">Camera trigger distance (meters)</param>
+        <param index="1">Camera trigger distance (meters). -1 or 0 to ignore</param>
-        <param index="2">Empty</param>
+        <param index="2">Camera shutter integration time (milliseconds). -1 or 0 to ignore</param>
        <param index="3">Empty</param>
        <param index="4">Empty</param>
        <param index="5">Empty</param>
@@ -1164,6 +1164,7 @@
        <param index="6">Empty</param>
        <param index="7">Empty</param>
      </entry>
+      <!-- 211 and 212 used in dialects -->
      <entry value="213" name="MAV_CMD_NAV_SET_YAW_SPEED">
        <description>Sets a desired vehicle turn angle and speed change</description>
        <param index="1">yaw angle to adjust steering by in centidegress</param>
@@ -1174,6 +1175,16 @@
        <param index="6">Empty</param>
        <param index="7">Empty</param>
      </entry>
+      <entry value="214" name="MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL">
+        <description>Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera.</description>
+        <param index="1">Camera trigger cycle time (milliseconds). -1 or 0 to ignore.</param>
+        <param index="2">Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.</param>
+        <param index="3">Empty</param>
+        <param index="4">Empty</param>
+        <param index="5">Empty</param>
+        <param index="6">Empty</param>
+        <param index="7">Empty</param>
+      </entry>
      <entry value="220" name="MAV_CMD_DO_MOUNT_CONTROL_QUAT">
        <description>Mission command to control a camera or antenna mount, using a quaternion as reference.</description>
        <param index="1">q1 - quaternion param #1, w (1 in null-rotation)</param>
@@ -1406,8 +1417,8 @@
      <entry value="2003" name="MAV_CMD_DO_TRIGGER_CONTROL">
        <description>Enable or disable on-board camera triggering system.</description>
        <param index="1">Trigger enable/disable (0 for disable, 1 for start), -1 to ignore</param>
-        <param index="2">Shutter integration time (in ms), -1 to ignore</param>
+        <param index="2">1 to reset the trigger sequence, -1 or 0 to ignore</param>
-        <param index="3">1 to reset the trigger sequence, -1/0 to ignore</param>
+        <param index="3">1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore</param>
      </entry>
      <entry value="2500" name="MAV_CMD_VIDEO_START_CAPTURE">
        <description>WIP: Starts video capture (recording)</description>

--- a/slugs/slugs.h
+++ b/slugs/slugs.h
@@ -78,7 +78,7 @@ typedef enum MAV_CMD
   MAV_CMD_DO_REPEAT_SERVO=184, /* Cycle a between its nominal setting and a desired PWM for a desired number of cycles with a desired period. |Servo number| PWM (microseconds, 1000 to 2000 typical)| Cycle count| Cycle time (seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_FLIGHTTERMINATION=185, /* Terminate flight immediately |Flight termination activated if > 0.5| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_CHANGE_ALTITUDE=186, /* Change altitude set point. |Altitude in meters| Mav frame of new altitude (see MAV_FRAME)| Empty| Empty| Empty| Empty| Empty|  */
-   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0/0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
+   MAV_CMD_DO_LAND_START=189, /* Mission command to perform a landing. This is used as a marker in a mission to tell the autopilot where a sequence of mission items that represents a landing starts. It may also be sent via a COMMAND_LONG to trigger a landing, in which case the nearest (geographically) landing sequence in the mission will be used. The Latitude/Longitude is optional, and may be set to 0 if not needed. If specified then it will be used to help find the closest landing sequence. |Empty| Empty| Empty| Empty| Latitude| Longitude| Empty|  */
   MAV_CMD_DO_RALLY_LAND=190, /* Mission command to perform a landing from a rally point. |Break altitude (meters)| Landing speed (m/s)| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GO_AROUND=191, /* Mission command to safely abort an autonmous landing. |Altitude (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_REPOSITION=192, /* Reposition the vehicle to a specific WGS84 global position. |Ground speed, less than 0 (-1) for default| Bitmask of option flags, see the MAV_DO_REPOSITION_FLAGS enum.| Reserved| Yaw heading, NaN for unchanged. For planes indicates loiter direction (0: clockwise, 1: counter clockwise)| Latitude (deg * 1E7)| Longitude (deg * 1E7)| Altitude (meters)|  */
@@ -87,15 +87,16 @@ typedef enum MAV_CMD
   MAV_CMD_DO_CONTROL_VIDEO=200, /* Control onboard camera system. |Camera ID (-1 for all)| Transmission: 0: disabled, 1: enabled compressed, 2: enabled raw| Transmission mode: 0: video stream, >0: single images every n seconds (decimal)| Recording: 0: disabled, 1: enabled compressed, 2: enabled raw| Empty| Empty| Empty|  */
   MAV_CMD_DO_SET_ROI=201, /* Sets the region of interest (ROI) for a sensor set or the vehicle itself. This can then be used by the vehicles control system to control the vehicle attitude and the attitude of various sensors such as cameras. |Region of intereset mode. (see MAV_ROI enum)| MISSION index/ target ID. (see MAV_ROI enum)| ROI index (allows a vehicle to manage multiple ROI's)| Empty| x the location of the fixed ROI (see MAV_FRAME)| y| z|  */
   MAV_CMD_DO_DIGICAM_CONFIGURE=202, /* Mission command to configure an on-board camera controller system. |Modes: P, TV, AV, M, Etc| Shutter speed: Divisor number for one second| Aperture: F stop number| ISO number e.g. 80, 100, 200, Etc| Exposure type enumerator| Command Identity| Main engine cut-off time before camera trigger in seconds/10 (0 means no cut-off)|  */
-   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Empty|  */
+   MAV_CMD_DO_DIGICAM_CONTROL=203, /* Mission command to control an on-board camera controller system. |Session control e.g. show/hide lens| Zoom's absolute position| Zooming step value to offset zoom from the current position| Focus Locking, Unlocking or Re-locking| Shooting Command| Command Identity| Test shot identifier. If set to 1, image will only be captured, but not counted towards internal frame count.|  */
   MAV_CMD_DO_MOUNT_CONFIGURE=204, /* Mission command to configure a camera or antenna mount |Mount operation mode (see MAV_MOUNT_MODE enum)| stabilize roll? (1 = yes, 0 = no)| stabilize pitch? (1 = yes, 0 = no)| stabilize yaw? (1 = yes, 0 = no)| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL=205, /* Mission command to control a camera or antenna mount |pitch (WIP: DEPRECATED: or lat in degrees) depending on mount mode.| roll (WIP: DEPRECATED: or lon in degrees) depending on mount mode.| yaw (WIP: DEPRECATED: or alt in meters) depending on mount mode.| WIP: alt in meters depending on mount mode.| WIP: latitude in degrees * 1E7, set if appropriate mount mode.| WIP: longitude in degrees * 1E7, set if appropriate mount mode.| MAV_MOUNT_MODE enum value|  */
-   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set CAM_TRIGG_DIST for this flight |Camera trigger distance (meters)| Empty| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_DIST=206, /* Mission command to set camera trigger distance for this flight. The camera is trigerred each time this distance is exceeded. This command can also be used to set the shutter integration time for the camera. |Camera trigger distance (meters). -1 or 0 to ignore| Camera shutter integration time (milliseconds). -1 or 0 to ignore| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_FENCE_ENABLE=207, /* Mission command to enable the geofence |enable? (0=disable, 1=enable, 2=disable_floor_only)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_PARACHUTE=208, /* Mission command to trigger a parachute |action (0=disable, 1=enable, 2=release, for some systems see PARACHUTE_ACTION enum, not in general message set.)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOTOR_TEST=209, /* Mission command to perform motor test |motor sequence number (a number from 1 to max number of motors on the vehicle)| throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)| throttle| timeout (in seconds)| Empty| Empty| Empty|  */
   MAV_CMD_DO_INVERTED_FLIGHT=210, /* Change to/from inverted flight |inverted (0=normal, 1=inverted)| Empty| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_NAV_SET_YAW_SPEED=213, /* Sets a desired vehicle turn angle and speed change |yaw angle to adjust steering by in centidegress| speed - normalized to 0 .. 1| Empty| Empty| Empty| Empty| Empty|  */
+   MAV_CMD_DO_SET_CAM_TRIGG_INTERVAL=214, /* Mission command to set camera trigger interval for this flight. If triggering is enabled, the camera is triggered each time this interval expires. This command can also be used to set the shutter integration time for the camera. |Camera trigger cycle time (milliseconds). -1 or 0 to ignore.| Camera shutter integration time (milliseconds). Should be less than trigger cycle time. -1 or 0 to ignore.| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_MOUNT_CONTROL_QUAT=220, /* Mission command to control a camera or antenna mount, using a quaternion as reference. |q1 - quaternion param #1, w (1 in null-rotation)| q2 - quaternion param #2, x (0 in null-rotation)| q3 - quaternion param #3, y (0 in null-rotation)| q4 - quaternion param #4, z (0 in null-rotation)| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_MASTER=221, /* set id of master controller |System ID| Component ID| Empty| Empty| Empty| Empty| Empty|  */
   MAV_CMD_DO_GUIDED_LIMITS=222, /* set limits for external control |timeout - maximum time (in seconds) that external controller will be allowed to control vehicle. 0 means no timeout| absolute altitude min (in meters, AMSL) - if vehicle moves below this alt, the command will be aborted and the mission will continue.  0 means no lower altitude limit| absolute altitude max (in meters)- if vehicle moves above this alt, the command will be aborted and the mission will continue.  0 means no upper altitude limit| horizontal move limit (in meters, AMSL) - if vehicle moves more than this distance from it's location at the moment the command was executed, the command will be aborted and the mission will continue. 0 means no horizontal altitude limit| Empty| Empty| Empty|  */
@@ -126,7 +127,7 @@ typedef enum MAV_CMD
   MAV_CMD_IMAGE_START_CAPTURE=2000, /* WIP: Start image capture sequence. Sends CAMERA_IMAGE_CAPTURED after each capture. |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Duration between two consecutive pictures (in seconds)| Number of images to capture total - 0 for unlimited capture| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)|  */
   MAV_CMD_IMAGE_STOP_CAPTURE=2001, /* WIP: Stop image capture sequence |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_REQUEST_CAMERA_IMAGE_CAPTURE=2002, /* WIP: Re-request a CAMERA_IMAGE_CAPTURE packet |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Sequence number for missing CAMERA_IMAGE_CAPTURE packet| Reserved (all remaining params)|  */
-   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| Shutter integration time (in ms), -1 to ignore| 1 to reset the trigger sequence, -1/0 to ignore|  */
+   MAV_CMD_DO_TRIGGER_CONTROL=2003, /* Enable or disable on-board camera triggering system. |Trigger enable/disable (0 for disable, 1 for start), -1 to ignore| 1 to reset the trigger sequence, -1 or 0 to ignore| 1 to pause triggering, but without switching the camera off or retracting it. -1 to ignore|  */
   MAV_CMD_VIDEO_START_CAPTURE=2500, /* WIP: Starts video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Frames per second, set to -1 for highest framerate possible.| Resolution horizontal in pixels (set to -1 for highest resolution possible)| Resolution vertical in pixels (set to -1 for highest resolution possible)| Frequency CAMERA_CAPTURE_STATUS messages should be sent while recording (0 for no messages, otherwise time in Hz)|  */
   MAV_CMD_VIDEO_STOP_CAPTURE=2501, /* WIP: Stop the current video capture (recording) |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */
   MAV_CMD_VIDEO_START_STREAMING=2502, /* WIP: Start video streaming |Camera ID (0 for all cameras, 1 for first, 2 for second, etc.)| Reserved|  */