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Thread: Chrubuntu 12.04 - No ttyUSB# access

  1. #1
    Join Date
    Mar 2009
    Beans
    19

    Chrubuntu 12.04 - No ttyUSB# access

    I am using an Acer C7 Chromebook that is running Chrubuntu 12.04. This is a version of Ubuntu 12.04 LTS configured for running on the Chromebook. The /dev/ folder in Chrubuntu does not have ttyUSB0, ttyUSB1 or ttyUSB2 files.

    I am trying to use it with a couple of pieces of ham radio accessories, that both plug into a USB port. I installed the manufacturer's linux software, but these items are not found on the C7. Both items work on a Windows machine, so there must be some kind of access rights issue related to Chrubuntu. I did get one of these pieces to run on an old IBM T-22 running Ubuntu 8.04.

    Seems like I need to get the ttyUSB0, ttyUSB1 or ttyUSB2 files installed on Chrubuntu.

    TIA for any help.

    Cal

  2. #2
    Join Date
    Apr 2008
    Location
    Norwich CT
    Beans
    1,344
    Distro
    Kubuntu 12.04 Precise Pangolin

    Re: Chrubuntu 12.04 - No ttyUSB# access

    Try this:

    sudo apt-get install modem-cmd

    and see if that works.
    Here's the file description:

    send arbitrary AT commands to your modem

    modem-cmd can be used to send arbitrary AT commands to a modem device over
    a serial line.

    This means it can be used as a phone dialer:

    $ modem-cmd /dev/ttyUSB0 ATDT123456

    BTW, I had never heard of ttyUSB. I fired up Synaptic (which you should install) and typed 'ttyusb' into the quick filter. It brought up modem-cmd. Just wanted to help. I hope this does what you want.

    I drink my Ubuntu black, no sugar.
    Ubuntu user 28819

  3. #3
    Join Date
    Apr 2014
    Beans
    1

    Re: Chrubuntu 12.04 - No ttyUSB# access

    Quote Originally Posted by ckuter View Post
    I am using an Acer C7 Chromebook that is running Chrubuntu 12.04. This is a version of Ubuntu 12.04 LTS configured for running on the Chromebook. The /dev/ folder in Chrubuntu does not have ttyUSB0, ttyUSB1 or ttyUSB2 files.

    I am trying to use it with a couple of pieces of ham radio accessories, that both plug into a USB port. I installed the manufacturer's linux software, but these items are not found on the C7. Both items work on a Windows machine, so there must be some kind of access rights issue related to Chrubuntu. I did get one of these pieces to run on an old IBM T-22 running Ubuntu 8.04.

    Seems like I need to get the ttyUSB0, ttyUSB1 or ttyUSB2 files installed on Chrubuntu.

    TIA for any help.

    Cal
    I am in the exact same situation as you. I am trying to access my printer and am unable to do so. I first thought it was Octoprint's fault, but then Repetier Host didn't work either. All that is available is tty0-tty63. There are not any ttyUSB* files nor any ttyS* files. If anyone has any ideas, please chime in. If I can't get this working by friday, I'll have to take my whole desktop across town with me

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