This issue also effects electronics hobbyist as I couldn't upload any
code to my ESP32 controller because the port keeps disappearing. It is
that after I found the dmesg message about the brltty, I have realized
something was wrong. I was checking my hardware because of it. I breaks
my ESP32 uploader as well as my FTDI adapter that I use for uploading
codes to other circuits. The same issue occurs on connecting other tty
devices such as an xbee coordinator we use in our servers at our
company. I don't know how this could be fixed, but ubuntu 22.04 broke
everything by including this package by default. It wasn't happening in
20.04. Thanks for your help.


[ 7196.861667] usb 3-2: usbfs: interface 0 claimed by cp210x while 'brltty' 
sets config #1
[ 7196.864844] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 7214.115056] usb 3-2: cp210x converter now attached to ttyUSB0
[ 7223.376707] usb 3-2: usbfs: interface 0 claimed by cp210x while 'brltty' 
sets config #1
[ 7223.379955] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[10318.411400] usb 3-2: cp210x converter now attached to ttyUSB0
[10319.151002] usb 3-2: usbfs: interface 0 claimed by cp210x while 'brltty' 
sets config #1
[10319.156189] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[10361.791685] usb 3-2: cp210x converter now attached to ttyUSB0
[10372.120057] usb 3-2: usbfs: interface 0 claimed by cp210x while 'brltty' 
sets config #1
[10372.123222] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[10433.747532] usb 3-2: cp210x converter now attached to ttyUSB0
[10451.436173] usb 3-2: usbfs: interface 0 claimed by cp210x while 'brltty' 
sets config #1
[10451.445241] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/874181

Title:
  brltty daemon prevents creation of ttyUSB0 device link

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/874181/+subscriptions


-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to