Public bug reported: [Impact] On 20.04.4, with modemmanager 1.16.6-2, the WWAN could be recognized correctly. With the new rules, the modem devices could be recognized correctly. And also could avoid wrong command for other protocols, like set 'AT' to wwan0mbim.
[Where problems could occur] It's just a udev rules, no harm to the system. [Fix] https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/commit/1a5e0609dce59c0a49a8698f0e8cb198483124c8 udev: Match WWAN "type" attribute instead of device name Recent changes in the WWAN framework in the kernel changed the WWAN port names from e.g. "wwan0p1AT" and "wwan0p2QMI" to "wwan0at0" and "wwan0qmi0" [1, 2]. This means that the udev rules no longer match since AT/QMI are now lower-case and no longer at the end of the name. However, recently additionally a "type" sysfs attribute was added for all WWAN ports [3], which makes it much more reliable to match the WWAN port names without relying on their exact device name. Add some additional udev rules to apply the port hints based on the "type" sysfs attributes. This fixes the port enumeration on newer Linux kernels that include the aforementioned commits. Note that we still need to keep the old udev rules for now since Linux 5.13 does not have the "type" attribute yet. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=392c26f7f133b9f09e5f58db1ce6ef4b3b4df49f [2]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f458709ff40b0d992fec496952f79c7820dd3fde [3]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=b3e22e10fdda8e7be3830289a4a63ae8b88d450c (cherry picked from commit 4282c8d8) [Test] With new rule, like Fibcomm L860 (8086:7560) could be recognized and show 'Mobile Broadband' item in the top-right menu. ** Affects: modemmanager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1978057 Title: [SRU] Support WWAN "type" attribute for 5.15 or 5.14-oem kernel Status in modemmanager package in Ubuntu: New Bug description: [Impact] On 20.04.4, with modemmanager 1.16.6-2, the WWAN could be recognized correctly. With the new rules, the modem devices could be recognized correctly. And also could avoid wrong command for other protocols, like set 'AT' to wwan0mbim. [Where problems could occur] It's just a udev rules, no harm to the system. [Fix] https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/commit/1a5e0609dce59c0a49a8698f0e8cb198483124c8 udev: Match WWAN "type" attribute instead of device name Recent changes in the WWAN framework in the kernel changed the WWAN port names from e.g. "wwan0p1AT" and "wwan0p2QMI" to "wwan0at0" and "wwan0qmi0" [1, 2]. This means that the udev rules no longer match since AT/QMI are now lower-case and no longer at the end of the name. However, recently additionally a "type" sysfs attribute was added for all WWAN ports [3], which makes it much more reliable to match the WWAN port names without relying on their exact device name. Add some additional udev rules to apply the port hints based on the "type" sysfs attributes. This fixes the port enumeration on newer Linux kernels that include the aforementioned commits. Note that we still need to keep the old udev rules for now since Linux 5.13 does not have the "type" attribute yet. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=392c26f7f133b9f09e5f58db1ce6ef4b3b4df49f [2]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f458709ff40b0d992fec496952f79c7820dd3fde [3]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=b3e22e10fdda8e7be3830289a4a63ae8b88d450c (cherry picked from commit 4282c8d8) [Test] With new rule, like Fibcomm L860 (8086:7560) could be recognized and show 'Mobile Broadband' item in the top-right menu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1978057/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
