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Zipline Zipline Service Documentation

    Dock EOL Maintenance Health Check

    published Last Updated: Oct 9, 2026 HW: EV3

    Maintenance Health Check Procedure

    Section titled “Maintenance Health Check Procedure”
    1 action
    Bring the Dock to the EOL tester.

    If the Tester Gets Rebooted

    Section titled “If the Tester Gets Rebooted”

    Go to the terminal of the Dock EOL tester. Copy the entire command block below, paste it into the terminal, and press Enter:

    Terminal window
    sudo bash -c '
    modprobe usbtmc
    for iface in /sys/bus/usb/devices/*:1.0; do
        [ -f "$iface/../idVendor" ] || continue
        [ "$(cat "$iface/../idVendor")" = f4ec ] || continue
        case "$(cat "$iface/../idProduct")" in
            1620|1621) ;;
            *) continue ;;
        esac
    

        name="${iface##*/}"
        driver=""
        [ -L "$iface/driver" ] && driver="$(basename "$(readlink -f "$iface/driver")")"
    

        [ "$driver" = usbfs ] && printf "%s\n" "$name" > /sys/bus/usb/drivers/usbfs/unbind
        [ "$driver" = usbtmc ] || printf "%s\n" "$name" > /sys/bus/usb/drivers/usbtmc/bind
    done
    

    udevadm trigger --subsystem-match=usbmisc --action=change
    udevadm settle
    '
    

    ls -l /dev/usbtmc_dock_eload

    The output will look something like this:

    E-load USB device output

    You want to see usbtmc0 or usbtmc1 appear. Both are OK. You should be able to run the tests after doing this.

    If you do not run this before trying to run maintenance_health_check, you will see a traceback error related to the E-load during the test_initialization phase.

    Troubleshooting Steps

    Section titled “Troubleshooting Steps”

    What problem did the test encounter?

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    Topic history
    1. 2026-10-07 Susan Minne Bulk/mechanical change
      Replace individual guide ownership with system technical contacts
      Commit dca5a1a
    2. 2026-09-24 Susan Minne Bulk/mechanical change
      chore: backfill smaller-domain owner identities
      Commit 7ed78a6
    3. 2026-09-13 Susan Minne Bulk/mechanical change
      feat: add MX approval metadata to topics
      Commit 406a785
    4. 2026-08-18 Danny Rivas
      docs: add dock troubleshooting chooser
      Commit 0ea6c66
    5. 2026-08-18 Danny Rivas
      docs: scope dock health check to EV3
      Commit 4ae7326
    6. 2026-08-18 Danny Rivas
      docs: restore dock before health check exit
      Commit a2e8a85
    7. 2026-08-18 Danny Rivas
      docs: branch on dock health check result
      Commit 0db1ab0
    8. 2026-08-17 Danny Rivas
      docs: require dock maintenance cleanup
      Commit 6a4940a
    9. 2026-08-17 Danny Rivas
      docs: close dock EOL maintenance mode
      Commit 6ab65df
    10. 2026-08-13 Danny Rivas
      docs: align dock EOL troubleshooting screenshots
      Commit 6a37e65
    Baseline import
    Initial import into service_docs
    Imported by Danny Rivas on 2026-08-13
    docs: add dock EOL maintenance health check
    Commit 3baa398
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