Sisters Dell Configure U2D2 202004

References

• Section 10.4.1.2 USB Latency Timer Setting

Initial Latency Value

 $ cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer
     16

Adding the rules

The following will not work on my system because it assume this is occurring in the /home/robotis account. I'm doing this in my account.

 $ ros2 run open_manipulator_x_controller create_udev_rules

     This script copies a udev rule to /etc to facilitate bringing
     up the OpenManipulator usb connection.
 
     [sudo] password for eepp: 
     cp: cannot stat '/home/robotis/robotis_ws/src/open_manipulator/open_manipulator_x_controller/99-open-manipulator-cdc.rules': No such file or directory

     Reload rules

I executed the contents of the create_udev_rules manually as follows

 $ sudo cp /home/eepp/robotis_ws/src/open_manipulator/open_manipulator_x_controller/99-open-manipulator-cdc.rules /etc/udev/rules.d/

 $ sudo udevadm control --reload-rules

 $ sudo udevadm trigger

and tested

 $ cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer
     1

Notes and Logs

• Sisters Dell U2D2 Communications 202004 Note and Log