Alessio, For both of my devices on this host `bConfigurationValue` is set to 2. When I change it to 1, the device disappears from `ip link`, in kernel logs I get messages: ``` Feb 12 08:19:37 margot kernel: cdc_ncm 2-1:2.0 enx3c8cf860663b: unregister 'cdc_ncm' usb-0000:00:0d.0-1, CDC NCM (NO ZLP) Feb 12 08:19:37 margot kernel: ceph-bond: (slave enx3c8cf860663b): Releasing active interface ```
I doubt the issue is related to the bug you've mentioned. On 6.8.0 my hosts use cdc_ncm to handle these USB Ethernet adapters: ``` # uname -a Linux margot 6.8.0-100-generic #100-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 13 16:40:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux # lsmod | grep -e cdc -e r81 cdc_mbim 20480 0 cdc_wdm 28672 1 cdc_mbim cdc_ncm 45056 1 cdc_mbim cdc_ether 24576 1 cdc_ncm usbnet 61440 3 cdc_mbim,cdc_ncm,cdc_ether ``` Attaching journal log for `bConfigurationValue` set to 1 ** Attachment added: "journal-6.17.0-bConfigurationValue_1.txt" https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.17/+bug/2140567/+attachment/5945658/+files/journal-6.17.0-bConfigurationValue_1.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2140567 Title: USB network adapter using cdc_ncm driver won't work starting 6.17.0-14-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.17/+bug/2140567/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
