This bug is still alive in Trusty, apparently only on 3.16 kernels (colleagues who are running 3.13 kernels do not have this issue):
$ cat /etc/issue Ubuntu 14.04.2 LTS \n \l $ uname -a Linux Depths 3.16.0-41-generic #57~14.04.1-Ubuntu SMP Thu Jun 18 18:01:13 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ grep CONFIG_USB_OTG /boot/config-3.16.0-41-generic CONFIG_USB_OTG=y # CONFIG_USB_OTG_WHITELIST is not set # CONFIG_USB_OTG_BLACKLIST_HUB is not set CONFIG_USB_OTG_FSM=m -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1411295 Title: CONFIG_USB_OTG has gotten set again, kernel will not talk to OTG devices Status in linux package in Ubuntu: Fix Released Status in linux source package in Utopic: Fix Committed Status in linux source package in Vivid: Fix Released Bug description: I have a few devices that have USB OTG ports. The kernel in Ubuntu 14.10 and later no longer recognizes these devices because CONFIG_USB_OTG forces the kernel to enter host nego protocol (which is not generally supported on the other end) and ends up rejecting the device. The devices work with Ubuntu 14.04 LTS. This CONFIG_USB_OTG config option was disabled by the fix for #1047527 but has since been reenabled for whatever reason, rendering desktop Ubuntu useless as a development host for these devices. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1411295/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp