Sunday, April 24, 2022

ttyUSB0 for IC-7300 missing on Ubuntu 22.04

I upgraded a machine to Ubuntu 22.04 and found that wsjt-x couldn't see the serial port any more.

lsusb shows the device:

Bus 001 Device 005: ID 10c4:ea60 Silicon Labs CP210x UART Bridge

It seems that Ubuntu has added a bunch of Braille devices, one of which conflicts with the serial device in the Icom radio.

The trick is to edit the file:

sudo nano /usr/lib/udev/rules.d/85-brltty.rules

and search for "10c4:ea60" 

Then comment out the line starting with ENV{PRODUCT}:

# Device: 10C4:EA60

# Generic Identifier

# Vendor: Cygnal Integrated Products, Inc.

# Product: CP210x UART Bridge / myAVR mySmartUSB light

# BrailleMemo [Pocket]

# Seika [Braille Display]

#ENV{PRODUCT}=="10c4/ea60/*", ATTRS{manufacturer}=="Silicon Labs", ENV{BRLTTY_B>

After a reboot the /dev/ttyUSB0 device is there and wsjt-x is all working again.

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