GPS/GSM Error – tty device locked

Home › Forums › Forums › Technical Support for BerryGPS-GSM › GPS/GSM Error – tty device locked

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • December 16, 2020 at 6:42 pm #16496
    automocpy
    Participant

    Hello,

    I am getting the following error when trying to connect via ppp. My configuration is an rPi zero W, connected via USB. GPS stream to rPi is working great. Here is the error:

    Dec 15 23:39:57 automocpi chat[1841]: AT+CGDCONT=1,”IP”,”hologram”^M^M
    Dec 15 23:39:57 automocpi chat[1841]: ERROR^M
    Dec 15 23:39:58 automocpi pppd[1800]: Device ttyACM0 is locked by pid 1839

    Any thoughts?

    Thanks

    December 16, 2020 at 9:37 pm #16498
    Mark Williams
    Keymaster

    it looks like something is using the serial port (ttyACM0)

    Try lsof /dev/ttyACM1  to see what is using it

    Mark --OzzMaker.com --

  • Author
    Posts
Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.

Blip, blop, bloop…