kernel-packages team mailing list archive

["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

Yes, with the 3.16.0-30-generic kernel downloaded and booted on a Ubuntu
14.10 system I get full expected behaviour from my USB OTG devices,
consistent with Ubuntu 14.04.

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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 Committed
Status in linux source package in Utopic:
  In Progress
Status in linux source package in Vivid:
  Fix Committed

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.

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