Score:1

What does "No such file or directory" on lsusb -t command imply?

bd flag

After a linux-firmware package update.

My USB 3 ports are no longer working for any USB device (2 or 3).

Ubuntu 22.04.1 Kernels 4.9 & 6.1.

lsusb -t lists the devices but the system does not want to use them.

When using lsusb -t to see the devices I also get several error lines displayed:

/sys/bus/usb/devices/1-1/rx_lanes: No such file or device
/sys/bus/usb/devices/1-1/tx_lanes: No such file or device
/sys/bus/usb/devices/usb2/rx_lanes: No such file or device
/sys/bus/usb/devices/usb2/tx_lanes: No such file or device
/sys/bus/usb/devices/1-1.2/rx_lanes: No such file or device
/sys/bus/usb/devices/1-1.2/tx_lanes: No such file or device
/sys/bus/usb/devices/1-2/rx_lanes: No such file or device
/sys/bus/usb/devices/1-2/tx_lanes: No such file or device

I have no idea if these messages are normal or related to my USB issue.

What do these messages mean or imply?

Do I need to fix something?

guiverc avatar
cn flag
Are you using Ubuntu? Ubuntu 22.04 LTS you tagged uses the 5.15 kernel (GA) or 5.19 kernel (HWE) yet you mention something else? What OS are you using?
WallyZ avatar
bd flag
I'm using Ubuntu 22.04.1 with a modified 4.9 kernel. The system has been running fine with this kernel since the launch of 22.04.0. The other system is also running 22.04 but with a more recent kernel 6.1. It too has been running fine for quite some time.
cn flag
`strace lsusb -t` it will be long but find the error code/exit and see what is shown just before it. Probably the driver link is missing
WallyZ avatar
bd flag
I ran the strace and it shows an openat() returning -1 for those devices. So affirms those files are not present. Should these files or links to them exist?
Artur Meinild avatar
vn flag
Running Ubuntu 22.04 with an ancient kernel (4.9) is not supported. I guess you're mostly on your own here..
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