Device not found on virtual machine

[130s]

After following install steps, device couldn't get found.

$ roslaunch dynpick_driver sample.launch 
... logging to /home/n130s/.ros/log/cba74924-d639-11e5-8a06-000c29ff0aaf/roslaunch-tork-kudu1-vm-precise64-8672.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://tork-kudu1-vm-precise64:33073/

SUMMARY
========

PARAMETERS
 * /dynpick_driver_node/device
 * /dynpick_driver_node/frame_id
 * /dynpick_driver_node/rate
 * /rosdistro
 * /rosversion

NODES
  /
    base_to_sensor (tf/static_transform_publisher)
    dynpick_driver_node (dynpick_driver/dynpick_driver_node)
    rviz (rviz/rviz)

auto-starting new master
process[master]: started with pid [8686]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to cba74924-d639-11e5-8a06-000c29ff0aaf
process[rosout-1]: started with pid [8699]
started core service [/rosout]
process[dynpick_driver_node-2]: started with pid [8711]
[ERROR] [1455797943.197775421]: could not open /dev/ttyUSB0


$ ls -la /dev/tty*
:
crw-rw---- 1 root dialout   4, 67 Feb 18 03:58 /dev/ttyS3
crw-rw---- 1 root dialout   4, 94 Feb 18 03:58 /dev/ttyS30
crw-rw---- 1 root dialout   4, 95 Feb 18 03:58 /dev/ttyS31
crw-rw---- 1 root dialout   4, 68 Feb 18 03:58 /dev/ttyS4
crw-rw---- 1 root dialout   4, 69 Feb 18 03:58 /dev/ttyS5
crw-rw---- 1 root dialout   4, 70 Feb 18 03:58 /dev/ttyS6
crw-rw---- 1 root dialout   4, 71 Feb 18 03:58 /dev/ttyS7
crw-rw---- 1 root dialout   4, 72 Feb 18 03:58 /dev/ttyS8
crw-rw---- 1 root dialout   4, 73 Feb 18 03:58 /dev/ttyS9
crw-rw---- 1 root dialout 188,  0 Feb 19 12:22 /dev/ttyUSB0

After manually chaging mode it worked.

chmod 666  /dev/ttyUSB0

VMware® Workstation 10.0.5 build-2443746
Host OS: Ubuntu 14.04, guest OS: Ubuntu 12.04

[130s]

dmesg of restarting udevd --> physically removing the device --> physically plugging back in the device.

[ 2331.580302] udevd[14653]: starting version 175
[ 3385.846172] usb 2-2.1: USB disconnect, device number 5
[ 3385.846440] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 3385.846463] cp210x 2-2.1:1.0: device disconnected
[ 3398.083953] usb 2-2.1: new full-speed USB device number 6 using uhci_hcd
[ 3398.316294] usb 2-2.1: New USB device found, idVendor=10c4, idProduct=ea60
[ 3398.316298] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3398.316306] usb 2-2.1: Product: CP2102 USB to UART Bridge Controller
[ 3398.316308] usb 2-2.1: Manufacturer: Silicon Labs
[ 3398.316310] usb 2-2.1: SerialNumber: 0001
[ 3398.319765] cp210x 2-2.1:1.0: cp210x converter detected
[ 3398.576509] usb 2-2.1: reset full-speed USB device number 6 using uhci_hcd
[ 3398.854395] usb 2-2.1: cp210x converter now attached to ttyUSB0

[k-okada]

may be you just forget to set udev ->
https://github.com/tork-a/dynpick_driver/blob/master/doc/index.rst
ls -al /dev/ttyUSB0
sudo chmod a+rw /dev/ttyUSB0

◉ Kei Okada

On Sat, Feb 20, 2016 at 5:56 AM, Isaac I.Y. Saito [email protected]
wrote:

dmesg of restarting udevd --> physically removing the device -->
physically plugging back in the device.

[ 2331.580302] udevd[14653]: starting version 175
[ 3385.846172] usb 2-2.1: USB disconnect, device number 5
[ 3385.846440] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 3385.846463] cp210x 2-2.1:1.0: device disconnected
[ 3398.083953] usb 2-2.1: new full-speed USB device number 6 using uhci_hcd
[ 3398.316294] usb 2-2.1: New USB device found, idVendor=10c4, idProduct=ea60
[ 3398.316298] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3398.316306] usb 2-2.1: Product: CP2102 USB to UART Bridge Controller
[ 3398.316308] usb 2-2.1: Manufacturer: Silicon Labs
[ 3398.316310] usb 2-2.1: SerialNumber: 0001
[ 3398.319765] cp210x 2-2.1:1.0: cp210x converter detected
[ 3398.576509] usb 2-2.1: reset full-speed USB device number 6 using uhci_hcd
[ 3398.854395] usb 2-2.1: cp210x converter now attached to ttyUSB0

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