** Description changed: + [Impact] + No more /dev/ttyUSB? device for RS485 USB dongle after upgrading lsusb -t #after upgrading - /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M + /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M - |__ Port 2: Dev 3, If 0, Class=Mass Storage, Driver=uas, 5000M + |__ Port 2: Dev 3, If 0, Class=Mass Storage, Driver=uas, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M - |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M - |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 12M - |__ Port 3: Dev 5, If 0, Class=Communications, Driver=, 12M - |__ Port 3: Dev 5, If 1, Class=CDC Data, Driver=, 12M - |__ Port 4: Dev 6, If 0, Class=Vendor Specific Class, Driver=, 12M - should see something like + |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M + |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 12M + |__ Port 3: Dev 5, If 0, Class=Communications, Driver=, 12M + |__ Port 3: Dev 5, If 1, Class=CDC Data, Driver=, 12M + |__ Port 4: Dev 6, If 0, Class=Vendor Specific Class, Driver=, 12M + should see something like /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M - |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M - |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=ch341, 12M + |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M + |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=ch341, 12M ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: linux-image-5.13.0-1008-raspi 5.13.0-1008.9 ProcVersionSignature: Ubuntu 5.13.0-1008.9-raspi 5.13.14 Uname: Linux 5.13.0-1008-raspi aarch64 ApportVersion: 2.20.11-0ubuntu70 Architecture: arm64 CasperMD5CheckResult: unknown Date: Tue Oct 19 07:13:27 2021 ImageMediaBuild: 20210421 SourcePackage: linux-raspi UpgradeStatus: Upgraded to impish on 2021-10-19 (0 days ago) + + [Test Case] + + Use a Serial-to-USB dongle. It won't be recognized because drivers are + missing from linux-modules. + + [Fix] + + Add drivers/usb/serial/* to linux-modules. + + [Where Problems Could Occur] + + New modules might get loaded which could trigger kernel crashes.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1947723 Title: /dev/ttyUSB? port lost on upgrading to 21.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1947723/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
