CUL868 and CC2531 with CUxD

[reinhard089]

Describe the solution you'd like

while using both CUL868 and CC2531 they switch ttyACM0 and ttyACM1 sometimes when you boot your system.
within the CUxD you can:
TTYASSIGN=ttyACM1:NC
when the CC2531 should not be used by CUxD, but when the switch ports, that does not work.
if you would have a udev rule like:
ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="204b", RUN+="modprobe cdc_acm", NAME="ttyACMCUL868"
ATTRS{idVendor}=="0451", ATTRS{idProduct}=="16a8", RUN+="modprobe cdc_acm", NAME="ttyACMCC2531"
the system would always use the right tty ports (links).

Describe alternatives you've considered

i unplug the USB-sticks and reinsert them in the right order after the reboot und than i need to reboot nodered as well.

Is your feature request related to a problem?

yes, because those two usb-sticks, sometimes switch the /dev/ttyACM0 and /dev/ttyACM0 symlinks.
when they do, the CUxD and nodeRed does not work anymore.

Additional information

CUxD Status:
USB 1-1 - (2514) [HUB] - Wed Nov 6 19:10:27 2024
USB 1-1.1 - (2514) [HUB] - Wed Nov 6 19:10:27 2024
USB 1-1.1.1 - (7800) [FF] - no driver - Wed Nov 6 19:10:27 2024
USB 1-1.1.2 - {NC} TI CC2531 USB CDC [COMM] - /dev/ttyACM1 - Wed Nov 6 19:10:27 2024
USB 1-1.1.3 - USB Mass Storage Device [STORAGE] - Wed Nov 6 19:10:27 2024
USB 1-1.2 - {CUX} CUL868 [COMM] - /dev/ttyACM0 {:6571s} - V 1.55 CUL868 (CUL_V3) - Wed Nov 6 19:10:27 2024
USB 1-1.3 - eQ-3 HmIP-RFUSB [FF] - no driver - Wed Nov 6 19:10:27 2024

CUxD setup:
TTYASSIGN=ttyACM1:NC

NodeRed Setup for Zigbee

[jens-maus]

Did you try to put your own udev rules file into /usr/local/lib/udev/rules.d/ as per the official udev documentation (see https://www.freedesktop.org/software/systemd/man/latest/udev.html).

[github-actions]

@reinhard089, the maintainer of this project has requested more detailed information or a specific feedback. Please provide this feedback and report back ASAP or this ticket will be automatically marked as stale after a certain short grace period.

[reinhard089]

hi,
thank for the reply.
no, i have not tried.
in my installation of RaspberryMatic (rpi3), there is no /usr/local/lib/...

and i could not find a place where i can place a custom udev-rule.

[jens-maus]

Well, then generate/create /usr/local/lib and put your own udev rules file under /usr/local/lib/udev/rules.d. Thus, a simple mkdir -p /usr/local/lib/udev/rules.d should be enough and then put your own rules.d file there for whatever you want to do via udev.