On Wed, Jun 01, 2022 at 07:37:45PM +0300, TonicLab.ru wrote: > Hi all, > > This problem appeared on a freshly installed Ubuntu 22.04 desktop. Not sure > I need to post this here. > > When I'm attaching a ftdi device into usb everything looks great but there's > no /dev/ttyUSB0 file. Seems it created and then disappeared. I tried to > remove brltty package (as some recommends on the net) but it didn't help. > The same ftdi device works on older Ubuntu version w/o any problems. > > I'm having this in syslog: > Jun 1 16:58:09 qgs-comp kernel: [ 538.642086] usb 2-1.5: new full-speed > USB device number 5 using ehci-pci > Jun 1 16:58:10 qgs-comp kernel: [ 538.756437] usb 2-1.5: New USB device > found, idVendor=0403, idProduct=6001, bcdDevice= 6.00 > Jun 1 16:58:10 qgs-comp kernel: [ 538.756445] usb 2-1.5: New USB device > strings: Mfr=1, Product=2, SerialNumber=3 > Jun 1 16:58:10 qgs-comp kernel: [ 538.756448] usb 2-1.5: Product: USB > Serial > Jun 1 16:58:10 qgs-comp kernel: [ 538.756450] usb 2-1.5: Manufacturer: > FTDI > Jun 1 16:58:10 qgs-comp kernel: [ 538.756452] usb 2-1.5: SerialNumber: > FT0KKBIF > Jun 1 16:58:10 qgs-comp kernel: [ 538.759677] ftdi_sio 2-1.5:1.0: FTDI USB > Serial Device converter detected > Jun 1 16:58:10 qgs-comp kernel: [ 538.759713] usb 2-1.5: Detected FT232RL > Jun 1 16:58:10 qgs-comp kernel: [ 538.760546] usb 2-1.5: FTDI USB Serial > Device converter now attached to ttyUSB0 It was created here. > Jun 1 16:58:01 qgs-comp colord-sane: message repeated 2 times: [ > io/hpmud/musb.c 2101: Invalid usb_open: Permission denied] > Jun 1 16:58:10 qgs-comp mtp-probe: checking bus 2, device 5: > "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5" > Jun 1 16:58:10 qgs-comp mtp-probe: bus: 2, device: 5 was not an MTP device > Jun 1 16:58:10 qgs-comp systemd-udevd[5394]: 2-1.5: Failed to create/update > device symlink '/dev/ttyUSB0', ignoring: File exists See it's still there. > Jun 1 16:58:10 qgs-comp snapd[942]: hotplug.go:199: hotplug device add > event ignored, enable experimental.hotplug > Jun 1 16:58:10 qgs-comp mtp-probe: checking bus 2, device 5: > "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5" > Jun 1 16:58:10 qgs-comp mtp-probe: bus: 2, device: 5 was not an MTP device > Jun 1 16:58:10 qgs-comp colord-sane: io/hpmud/musb.c 2101: Invalid > usb_open: Permission denied I do not see it going away. Are you sure it is gone? Any further log messages? thanks, greg k-h
