** Description changed: SRU Justification: Impact: The cdc_ncm module, which provides support for the Ericsson F5521gw Mobile Broadband Modem, unregisters the device after suspend because the .reset_resume hook in the driver is not assigned. - Fix: Upstream commit 85e3c65fa3a1d0542c18151 + Fix: Upstream commit 85e3c65fa3a1d0542c181510a950a2be7733ff29 Test Case: Without the fix, after resume from suspend you'll notice messages similar to the following in dmesg output: cdc_ncm 2-1.4:1.6: no reset_resume for driver cdc_ncm? cdc_ncm 2-1.4:1.7: no reset_resume for driver cdc_ncm? cdc_ncm 2-1.4:1.6: usb0: unregister 'cdc_ncm' usb-0000:00:1d.0-1.4, CDC NCM ===== The cdc_ncm module, which provides support for the Ericsson F5521gw Mobile Broadband Modem, unregisters the device after suspend. This happens because the driver doesn't implement the .reset_resume hook. $ lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 $ cat /proc/version_signature Ubuntu 2.6.38-8.42-generic 2.6.38.2 The fix was commited upstream for 3.0 - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=85e3c65fa3a1d0542c18151 + http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=85e3c65fa3a1d0542c181510a950a2be7733ff29 But sadly the official 2.6.38 stable tree is closed, see http://marc.info/?l=linux-usb&m=130737305305181&w=2 So I'd like to have this fix backported to the ubuntu natty kernel
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/793892 Title: backport cdc_ncm fix for Ericsson F5521gw Mobile Broadband Modem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/793892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
