Hello, I am trying to use hardware syncing on two L515 cameras through ROS. Every second or so, I have one of the following errors. WARNING [547054670208] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 or a similar error about resource being busy. I have gotten this error just using the realsense-viewer on both a Jetson Nano running Ubuntu and a macbook pro. I am still able to see all the ROS topics, open them in RVIZ, and see the data through the Realsense-viewer. It doesn’t seem to matter what parameters I put in, I still get the errors every couple of seconds. I have tried three different cables that came with three separate L515 cameras and multiple generic cables as well. I have tried setting initial_reset:=true in the roslaunch command as well but that made no difference. P

Is this something I should worry about? It didn’t seem to be much of a problem at first but I am having trouble getting both cameras to shift into sync mode and I have a feeling its connected.

here is my launch command roslaunch realsense2_camera rs_multiple_devices.launch serial_no_camera1:=f0352241 serial_no_camera2:=f1062638 enable_sync:=True filters:=spatial,temporal,pointcloud_

Please advise. Thanks!

Here is the log.

`roslaunch realsense2_camera rs_multiple_devices.launch serial_no_camera1:=f0352241 serial_no_camera2:=f1062638 enable_sync:=true initial_reset:=true filters:=spatial,temporal,pointcloud_ … logging to /home/petra2/.ros/log/984c3c5a-d2c9-11eb-b393-00044bec1e9a/roslaunch-petra2-desktop-19058.log Checking log directory for disk usage. This may take a while. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://petra2-desktop:37975/

SUMMARY

PARAMETERS

• /camera1/realsense2_camera/accel_fps: 0
• /camera1/realsense2_camera/accel_frame_id: camera1_accel_frame
• /camera1/realsense2_camera/accel_optical_frame_id: camera1_accel_opt…
• /camera1/realsense2_camera/align_depth: False
• /camera1/realsense2_camera/aligned_depth_to_color_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/aligned_depth_to_fisheye1_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/aligned_depth_to_fisheye2_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/aligned_depth_to_fisheye_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/aligned_depth_to_infra1_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/aligned_depth_to_infra2_frame_id: camera1_aligned_d…
• /camera1/realsense2_camera/allow_no_texture_points: False
• /camera1/realsense2_camera/base_frame_id: camera1_link
• /camera1/realsense2_camera/calib_odom_file:
• /camera1/realsense2_camera/clip_distance: -1.0
• /camera1/realsense2_camera/color_fps: 30
• /camera1/realsense2_camera/color_frame_id: camera1_color_frame
• /camera1/realsense2_camera/color_height: 480
• /camera1/realsense2_camera/color_optical_frame_id: camera1_color_opt…
• /camera1/realsense2_camera/color_width: 640
• /camera1/realsense2_camera/confidence_fps: 30
• /camera1/realsense2_camera/confidence_height: 480
• /camera1/realsense2_camera/confidence_width: 640
• /camera1/realsense2_camera/depth_fps: 30
• /camera1/realsense2_camera/depth_frame_id: camera1_depth_frame
• /camera1/realsense2_camera/depth_height: 480
• /camera1/realsense2_camera/depth_optical_frame_id: camera1_depth_opt…
• /camera1/realsense2_camera/depth_width: 640
• /camera1/realsense2_camera/device_type:
• /camera1/realsense2_camera/enable_accel: False
• /camera1/realsense2_camera/enable_color: True
• /camera1/realsense2_camera/enable_confidence: True
• /camera1/realsense2_camera/enable_depth: True
• /camera1/realsense2_camera/enable_fisheye1: False
• /camera1/realsense2_camera/enable_fisheye2: False
• /camera1/realsense2_camera/enable_fisheye: False
• /camera1/realsense2_camera/enable_gyro: False
• /camera1/realsense2_camera/enable_infra1: False
• /camera1/realsense2_camera/enable_infra2: False
• /camera1/realsense2_camera/enable_infra: False
• /camera1/realsense2_camera/enable_pointcloud: False
• /camera1/realsense2_camera/enable_pose: False
• /camera1/realsense2_camera/enable_sync: False
• /camera1/realsense2_camera/filters:
• /camera1/realsense2_camera/fisheye1_frame_id: camera1_fisheye1_…
• /camera1/realsense2_camera/fisheye1_optical_frame_id: camera1_fisheye1_…
• /camera1/realsense2_camera/fisheye2_frame_id: camera1_fisheye2_…
• /camera1/realsense2_camera/fisheye2_optical_frame_id: camera1_fisheye2_…
• /camera1/realsense2_camera/fisheye_fps: 30
• /camera1/realsense2_camera/fisheye_frame_id: camera1_fisheye_f…
• /camera1/realsense2_camera/fisheye_height: 0
• /camera1/realsense2_camera/fisheye_optical_frame_id: camera1_fisheye_o…
• /camera1/realsense2_camera/fisheye_width: 0
• /camera1/realsense2_camera/gyro_fps: 0
• /camera1/realsense2_camera/gyro_frame_id: camera1_gyro_frame
• /camera1/realsense2_camera/gyro_optical_frame_id: camera1_gyro_opti…
• /camera1/realsense2_camera/imu_optical_frame_id: camera1_imu_optic…
• /camera1/realsense2_camera/infra1_frame_id: camera1_infra1_frame
• /camera1/realsense2_camera/infra1_optical_frame_id: camera1_infra1_op…
• /camera1/realsense2_camera/infra2_frame_id: camera1_infra2_frame
• /camera1/realsense2_camera/infra2_optical_frame_id: camera1_infra2_op…
• /camera1/realsense2_camera/infra_fps: 30
• /camera1/realsense2_camera/infra_height: 480
• /camera1/realsense2_camera/infra_rgb: False
• /camera1/realsense2_camera/infra_width: 640
• /camera1/realsense2_camera/initial_reset: True
• /camera1/realsense2_camera/json_file_path:
• /camera1/realsense2_camera/linear_accel_cov: 0.01
• /camera1/realsense2_camera/odom_frame_id: camera1_odom_frame
• /camera1/realsense2_camera/ordered_pc: False
• /camera1/realsense2_camera/pointcloud_texture_index: 0
• /camera1/realsense2_camera/pointcloud_texture_stream: RS2_STREAM_COLOR
• /camera1/realsense2_camera/pose_frame_id: camera1_pose_frame
• /camera1/realsense2_camera/pose_optical_frame_id: camera1_pose_opti…
• /camera1/realsense2_camera/publish_odom_tf: True
• /camera1/realsense2_camera/publish_tf: True
• /camera1/realsense2_camera/rosbag_filename:
• /camera1/realsense2_camera/serial_no: f0352241
• /camera1/realsense2_camera/stereo_module/exposure/1: 7500
• /camera1/realsense2_camera/stereo_module/exposure/2: 1
• /camera1/realsense2_camera/stereo_module/gain/1: 16
• /camera1/realsense2_camera/stereo_module/gain/2: 16
• /camera1/realsense2_camera/tf_publish_rate: 0.0
• /camera1/realsense2_camera/topic_odom_in: camera1/odom_in
• /camera1/realsense2_camera/unite_imu_method: none
• /camera1/realsense2_camera/usb_port_id:
• /camera2/realsense2_camera/accel_fps: 0
• /camera2/realsense2_camera/accel_frame_id: camera2_accel_frame
• /camera2/realsense2_camera/accel_optical_frame_id: camera2_accel_opt…
• /camera2/realsense2_camera/align_depth: False
• /camera2/realsense2_camera/aligned_depth_to_color_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/aligned_depth_to_fisheye1_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/aligned_depth_to_fisheye2_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/aligned_depth_to_fisheye_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/aligned_depth_to_infra1_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/aligned_depth_to_infra2_frame_id: camera2_aligned_d…
• /camera2/realsense2_camera/allow_no_texture_points: False
• /camera2/realsense2_camera/base_frame_id: camera2_link
• /camera2/realsense2_camera/calib_odom_file:
• /camera2/realsense2_camera/clip_distance: -1.0
• /camera2/realsense2_camera/color_fps: 30
• /camera2/realsense2_camera/color_frame_id: camera2_color_frame
• /camera2/realsense2_camera/color_height: 480
• /camera2/realsense2_camera/color_optical_frame_id: camera2_color_opt…
• /camera2/realsense2_camera/color_width: 640
• /camera2/realsense2_camera/confidence_fps: 30
• /camera2/realsense2_camera/confidence_height: 480
• /camera2/realsense2_camera/confidence_width: 640
• /camera2/realsense2_camera/depth_fps: 30
• /camera2/realsense2_camera/depth_frame_id: camera2_depth_frame
• /camera2/realsense2_camera/depth_height: 480
• /camera2/realsense2_camera/depth_optical_frame_id: camera2_depth_opt…
• /camera2/realsense2_camera/depth_width: 640
• /camera2/realsense2_camera/device_type:
• /camera2/realsense2_camera/enable_accel: False
• /camera2/realsense2_camera/enable_color: True
• /camera2/realsense2_camera/enable_confidence: True
• /camera2/realsense2_camera/enable_depth: True
• /camera2/realsense2_camera/enable_fisheye1: False
• /camera2/realsense2_camera/enable_fisheye2: False
• /camera2/realsense2_camera/enable_fisheye: False
• /camera2/realsense2_camera/enable_gyro: False
• /camera2/realsense2_camera/enable_infra1: False
• /camera2/realsense2_camera/enable_infra2: False
• /camera2/realsense2_camera/enable_infra: False
• /camera2/realsense2_camera/enable_pointcloud: False
• /camera2/realsense2_camera/enable_pose: False
• /camera2/realsense2_camera/enable_sync: False
• /camera2/realsense2_camera/filters:
• /camera2/realsense2_camera/fisheye1_frame_id: camera2_fisheye1_…
• /camera2/realsense2_camera/fisheye1_optical_frame_id: camera2_fisheye1_…
• /camera2/realsense2_camera/fisheye2_frame_id: camera2_fisheye2_…
• /camera2/realsense2_camera/fisheye2_optical_frame_id: camera2_fisheye2_…
• /camera2/realsense2_camera/fisheye_fps: 30
• /camera2/realsense2_camera/fisheye_frame_id: camera2_fisheye_f…
• /camera2/realsense2_camera/fisheye_height: 0
• /camera2/realsense2_camera/fisheye_optical_frame_id: camera2_fisheye_o…
• /camera2/realsense2_camera/fisheye_width: 0
• /camera2/realsense2_camera/gyro_fps: 0
• /camera2/realsense2_camera/gyro_frame_id: camera2_gyro_frame
• /camera2/realsense2_camera/gyro_optical_frame_id: camera2_gyro_opti…
• /camera2/realsense2_camera/imu_optical_frame_id: camera2_imu_optic…
• /camera2/realsense2_camera/infra1_frame_id: camera2_infra1_frame
• /camera2/realsense2_camera/infra1_optical_frame_id: camera2_infra1_op…
• /camera2/realsense2_camera/infra2_frame_id: camera2_infra2_frame
• /camera2/realsense2_camera/infra2_optical_frame_id: camera2_infra2_op…
• /camera2/realsense2_camera/infra_fps: 30
• /camera2/realsense2_camera/infra_height: 480
• /camera2/realsense2_camera/infra_rgb: False
• /camera2/realsense2_camera/infra_width: 640
• /camera2/realsense2_camera/initial_reset: True
• /camera2/realsense2_camera/json_file_path:
• /camera2/realsense2_camera/linear_accel_cov: 0.01
• /camera2/realsense2_camera/odom_frame_id: camera2_odom_frame
• /camera2/realsense2_camera/ordered_pc: False
• /camera2/realsense2_camera/pointcloud_texture_index: 0
• /camera2/realsense2_camera/pointcloud_texture_stream: RS2_STREAM_COLOR
• /camera2/realsense2_camera/pose_frame_id: camera2_pose_frame
• /camera2/realsense2_camera/pose_optical_frame_id: camera2_pose_opti…
• /camera2/realsense2_camera/publish_odom_tf: True
• /camera2/realsense2_camera/publish_tf: True
• /camera2/realsense2_camera/rosbag_filename:
• /camera2/realsense2_camera/serial_no: f1062638
• /camera2/realsense2_camera/stereo_module/exposure/1: 7500
• /camera2/realsense2_camera/stereo_module/exposure/2: 1
• /camera2/realsense2_camera/stereo_module/gain/1: 16
• /camera2/realsense2_camera/stereo_module/gain/2: 16
• /camera2/realsense2_camera/tf_publish_rate: 0.0
• /camera2/realsense2_camera/topic_odom_in: camera2/odom_in
• /camera2/realsense2_camera/unite_imu_method: none
• /camera2/realsense2_camera/usb_port_id:
• /rosdistro: melodic
• /rosversion: 1.14.11

NODES /camera1/ realsense2_camera (nodelet/nodelet) realsense2_camera_manager (nodelet/nodelet) /camera2/ realsense2_camera (nodelet/nodelet) realsense2_camera_manager (nodelet/nodelet)

ROS_MASTER_URI=http://localhost:11311

process[camera1/realsense2_camera_manager-1]: started with pid [19076] process[camera1/realsense2_camera-2]: started with pid [19077] process[camera2/realsense2_camera_manager-3]: started with pid [19078] process[camera2/realsense2_camera-4]: started with pid [19084] [ INFO] [1624550931.354220388]: Initializing nodelet with 4 worker threads. [ INFO] [1624550931.439997088]: Initializing nodelet with 4 worker threads. [ INFO] [1624550931.755637213]: RealSense ROS v2.3.0 [ INFO] [1624550931.755736589]: Built with LibRealSense v2.45.0 [ INFO] [1624550931.755805340]: Running with LibRealSense v2.45.0 [ INFO] [1624550931.828885645]: RealSense ROS v2.3.0 [ INFO] [1624550931.828989762]: Built with LibRealSense v2.45.0 [ INFO] [1624550931.829071377]: Running with LibRealSense v2.45.0 [ INFO] [1624550931.862020797]:
[ INFO] [1624550931.981976051]:
[ WARN] [1624550932.041513800]: Device 1/2 failed with exception: failed to set power state 24/06 11:08:52,039 ERROR [547583148416] (handle-libusb.h:95) failed to claim usb interface: 0, error: RS2_USB_STATUS_BUSY 24/06 11:08:52,040 ERROR [547608326528] (sensor.cpp:526) acquire_power failed: failed to set power state 24/06 11:08:52,041 WARNING [547608326528] (rs.cpp:306) null pointer passed for argument “device” [ INFO] [1624550932.122565270]: Device with serial number f0352241 was found.

[ INFO] [1624550932.122681783]: Device with physical ID 2-1.1-5 was found. [ INFO] [1624550932.122749648]: Device with name Intel RealSense L515 was found. [ INFO] [1624550932.124297433]: Device with port number 2-1.1 was found. [ INFO] [1624550932.124418164]: Device USB type: 3.2 [ INFO] [1624550932.124509624]: Resetting device… 24/06 11:08:52,177 WARNING [547591541120] (messenger-libusb.cpp:42) control_transfer returned error, index: 300, error: No data available, number: 3d [ INFO] [1624550932.334085802]: Device with serial number f1062638 was found.

[ INFO] [1624550932.334193564]: Device with physical ID 2-1.2-4 was found. [ INFO] [1624550932.334274295]: Device with name Intel RealSense L515 was found. [ INFO] [1624550932.335725984]: Device with port number 2-1.2 was found. [ INFO] [1624550932.336094532]: Device USB type: 3.2 [ INFO] [1624550932.336353129]: Resetting device… [ INFO] [1624550938.180100774]:
24/06 11:08:58,299 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 300, error: No data available, number: 3d [ INFO] [1624550938.398846043]:
[ INFO] [1624550938.466241203]: Device with serial number f0352241 was found.

[ INFO] [1624550938.466399799]: Device with physical ID 2-1.1-6 was found. [ INFO] [1624550938.466539333]: Device with name Intel RealSense L515 was found. [ INFO] [1624550938.467598151]: Device with port number 2-1.1 was found. [ INFO] [1624550938.467692528]: Device USB type: 3.2 [ INFO] [1624550938.474363360]: getParameters… 24/06 11:08:58,473 WARNING [547297927552] (messenger-libusb.cpp:42) control_transfer returned error, index: 300, error: No data available, number: 3d [ INFO] [1624550938.619207847]: Device with serial number f0352241 was found.

[ INFO] [1624550938.619322016]: Device with physical ID 2-1.1-6 was found. [ INFO] [1624550938.619384933]: Device with name Intel RealSense L515 was found. [ INFO] [1624550938.620474742]: Device with port number 2-1.1 was found. 24/06 11:08:58,761 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: Resource temporarily unavailable, number: 11 [ INFO] [1624550938.873951174]: setupDevice… [ INFO] [1624550938.874054353]: JSON file is not provided [ INFO] [1624550938.874114614]: ROS Node Namespace: camera1 [ INFO] [1624550938.874171855]: Device Name: Intel RealSense L515 [ INFO] [1624550938.874224304]: Device Serial No: f0352241 [ INFO] [1624550938.874270450]: Device physical port: 2-1.1-6 [ INFO] [1624550938.874317534]: Device FW version: 01.05.05.00 [ INFO] [1624550938.874364670]: Device Product ID: 0x0B64 [ INFO] [1624550938.874410556]: Enable PointCloud: Off [ INFO] [1624550938.874501756]: Align Depth: Off [ INFO] [1624550938.874554777]: Sync Mode: Off [ INFO] [1624550938.874668217]: Device Sensors: [ INFO] [1624550938.908060662]: L500 Depth Sensor was found. [ INFO] [1624550938.927621955]: RGB Camera was found. [ INFO] [1624550938.928297174]: Motion Module was found. [ INFO] [1624550938.928424519]: num_filters: 0 [ INFO] [1624550938.928491656]: Setting Dynamic reconfig parameters. [ INFO] [1624550938.939194843]: Device with serial number f1062638 was found.

[ INFO] [1624550938.939333491]: Device with physical ID 2-1.2-7 was found. [ INFO] [1624550938.939393752]: Device with name Intel RealSense L515 was found. [ INFO] [1624550938.940653042]: Device with port number 2-1.2 was found. [ INFO] [1624550938.940719293]: Device USB type: 3.2 [ INFO] [1624550938.949871154]: getParameters… [ INFO] [1624550939.359300680]: setupDevice… [ INFO] [1624550939.359426984]: JSON file is not provided [ INFO] [1624550939.359484485]: ROS Node Namespace: camera2 [ INFO] [1624550939.359538184]: Device Name: Intel RealSense L515 [ INFO] [1624550939.359596518]: Device Serial No: f1062638 [ INFO] [1624550939.359651102]: Device physical port: 2-1.2-7 [ INFO] [1624550939.359699957]: Device FW version: 01.05.05.00 [ INFO] [1624550939.359746521]: Device Product ID: 0x0B64 [ INFO] [1624550939.359792980]: Enable PointCloud: Off [ INFO] [1624550939.359839022]: Align Depth: Off [ INFO] [1624550939.359883814]: Sync Mode: Off [ INFO] [1624550939.360005431]: Device Sensors: [ INFO] [1624550939.387746382]: L500 Depth Sensor was found. [ INFO] [1624550939.406920013]: RGB Camera was found. [ INFO] [1624550939.407697681]: Motion Module was found. [ INFO] [1624550939.407865027]: num_filters: 0 [ INFO] [1624550939.407950497]: Setting Dynamic reconfig parameters. [ INFO] [1624550939.446733859]: Done Setting Dynamic reconfig parameters. [ INFO] [1624550939.447707416]: depth stream is enabled - width: 640, height: 480, fps: 30, Format: Z16 [ WARN] [1624550939.448095963]: Given stream configuration is not supported by the device! Stream: Color, Stream Index: 0, Width: 640, Height: 480, FPS: 30, Format: None [ WARN] [1624550939.448249039]: Using default profile instead. [ INFO] [1624550939.450708869]: color stream is enabled - width: 1280, height: 720, fps: 30, Format: RGB8 [ INFO] [1624550939.451478776]: confidence stream is enabled - width: 640, height: 480, fps: 30, Format: RAW8 [ INFO] [1624550939.451690342]: setupPublishers… [ INFO] [1624550939.473229530]: Expected frequency for depth = 30.00000 [ INFO] [1624550939.661304947]: Expected frequency for color = 30.00000 [ INFO] [1624550939.828012844]: Expected frequency for confidence = 30.00000 [ INFO] [1624550939.974208444]: Done Setting Dynamic reconfig parameters. [ INFO] [1624550939.975144240]: depth stream is enabled - width: 640, height: 480, fps: 30, Format: Z16 [ WARN] [1624550939.975441641]: Given stream configuration is not supported by the device! Stream: Color, Stream Index: 0, Width: 640, Height: 480, FPS: 30, Format: None [ WARN] [1624550939.975517631]: Using default profile instead. [ INFO] [1624550939.977920950]: color stream is enabled - width: 1280, height: 720, fps: 30, Format: RGB8 [ INFO] [1624550939.978611065]: confidence stream is enabled - width: 640, height: 480, fps: 30, Format: RAW8 [ INFO] [1624550939.978814141]: setupPublishers… [ INFO] [1624550939.998162618]: Expected frequency for depth = 30.00000 [ INFO] [1624550940.033538895]: setupStreams… [ INFO] [1624550940.058243341]: insert Depth to L500 Depth Sensor [ INFO] [1624550940.058425271]: insert Color to RGB Camera [ INFO] [1624550940.058506157]: insert Confidence to L500 Depth Sensor 24/06 11:09:00,165 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 [ INFO] [1624550940.194999887]: SELECTED BASE:Depth, 0 [ INFO] [1624550940.207146326]: Expected frequency for color = 30.00000 24/06 11:09:00,216 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:00,267 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:00,318 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 [ INFO] [1624550940.372615348]: RealSense Node Is Up! [ INFO] [1624550940.375545863]: Expected frequency for confidence = 30.00000 [ WARN] [1624550940.393768020]: [ WARN] [1624550940.394089848]: frame’s time domain is HARDWARE_CLOCK. Timestamps may reset periodically. [ INFO] [1624550940.543960868]: setupStreams… 24/06 11:09:00,556 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 [ INFO] [1624550940.618318375]: insert Depth to L500 Depth Sensor [ INFO] [1624550940.618544889]: insert Color to RGB Camera [ INFO] [1624550940.618748225]: insert Confidence to L500 Depth Sensor 24/06 11:09:00,716 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:00,775 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 [ INFO] [1624550940.777208025]: SELECTED BASE:Depth, 0 24/06 11:09:00,826 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:00,877 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 [ INFO] [1624550940.930059248]: RealSense Node Is Up! [ WARN] [1624550940.948812820]: [ WARN] [1624550940.949211889]: frame’s time domain is HARDWARE_CLOCK. Timestamps may reset periodically. 24/06 11:09:01,131 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:01,168 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:01,777 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:03,030 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:03,627 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:04,293 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:05,371 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:06,090 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:06,757 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:07,354 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:08,430 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:09,221 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:10,492 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:11,022 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:11,746 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:12,998 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:13,490 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:14,258 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:14,757 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 ^C[camera2/realsense2_camera-4] killing on exit [camera2/realsense2_camera_manager-3] killing on exit [camera1/realsense2_camera-2] killing on exit [camera1/realsense2_camera_manager-1] killing on exit 24/06 11:09:16,011 WARNING [547104993664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 24/06 11:09:16,724 WARNING [547323105664] (messenger-libusb.cpp:42) control_transfer returned error, index: 768, error: No data available, number: 61 shutting down processing monitor… … shutting down processing monitor complete done`