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cbc02009 avatar Ubuntu

USB serial devices not showing in /dev/serial/by-id/ after update from 21.04 to 21.10

kp flag
cbc02009

Architecture is arm64 running on a RPi 4 2gb. The serial device is any of my 3d printer boards running Klipper firmware.

USB device was working perfectly fine before update. I've also tried a fresh install of 21.10 to make sure it wasn't an update issue, but still having the same problem. Installing a fresh copy of 20.04 LTS fixes the issue, so I'm fairly confident the issue is related to some change from 21.04 to 21.10.

Device shows up properly in lsusb:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 1d50:614e OpenMoko, Inc. lpc1769
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

but the actual device (/dev/ttyACM0 in 21.04 and 21.10) does not ever show up.

I'm not sure if it's related, but systemd-udevd seems to be throwing errors:

Oct 23 13:28:50 Himari systemd-udevd[931]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:14 Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp -s $ALIASES/uart0 $ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 58: invalid substitution type), ignoring, but please fix it.
Oct 23 13:28:50 Himari systemd-udevd[931]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:27 Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if [ -e /dev/ttyAMA0 ]; then exit 1; elif cmp -s $ALIASES/uart0 $ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 97: invalid substitution type), ignoring, but please fix it.
Oct 23 13:28:50 Himari systemd-udevd[931]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:38 Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp -s $ALIASES/uart1 $ALIASES/serial0; then echo 0; elif cmp -s $ALIASES/uart1 $ALIASES/serial1; then echo 1; else exit 1; fi '" for PROGRAM (char 58: invalid substitution type), ignoring, but please fix it.```
2006
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usb
heynnema avatar
ru flag
heynnema
Does the USB go directly to the 3D printer, or via a USB->Serial adapter? In lsusb, which device is the 3D printer?
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cbc02009 avatar
kp flag
cbc02009
USB directly to the printer board. `Bus 001 Device 003: ID 1d50:614e OpenMoko, Inc. lpc1769` is the serial device
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heynnema avatar
ru flag
heynnema
Have you looked at /var/log/syslog for any clues?
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Score:2
avatar Ubuntu
jp flag
Roland Arendes

TL;DR: Please check if linux-modules-extra-raspi package is installed. Looks like some drivers were moved into a new package in 21.10 to reduce the size of the initramfs. Installing it manually helped in my case:

sudo apt install linux-modules-extra-raspi
sudo reboot

I am also affected by the exact same issue. Earlier today, I was working and setting up an USB IR reader for my power meter with Ubuntu 21.04 on a Raspberry Pi 4. After do-release-upgrade, the /dev/ttyUSB0 did not show up. The USB device in lsusb is there, but somehow the usbserial device creation does not kick in.

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s bridge
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Device in question is 0403:6015.

There seem to be a related bug filed here already on launchpad.

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cbc02009 avatar
kp flag
cbc02009
Thank you! this was exactly the answer!
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cn flag
Joachim
Oh my! Thank you so much. I've spent all day trying to figure this out!
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