kernel-packages team mailing list archive

[XiongZhang <xiong.y.zhang@xxxxxxxxx>]

the following three commits will be in kernel 3.12 and are marked for
stable for bug fixing this feature, please backport it to raring and
saucy kernel.

These are currently in Greg KH's usb-next tree (queued for 3.12), and
are marked for stable:

commit aa5ceae24bf8dff1d6fe87c6c4b08e69c6d33550 "USB: handle LPM errors during
device suspend correctly"
commit 98a4f1ff7bea8002ab79d6776e30d27932e88244 "usb: don't check pm qos
NO_POWER_OFF flag in usb_port_suspend()"
commit d49dad3e11638f66be4e16573ffaa8c46a09e3b3 "usb: Don't fail port power
resume on device disconnect."

External links:
https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers/usb/core/hub.c?h=usb-next&id=aa5ceae24bf8dff1d6fe87c6c4b08e69c6d33550
https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers/usb/core/hub.c?h=usb-next&id=98a4f1ff7bea8002ab79d6776e30d27932e88244
https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers/usb/core/hub.c?h=usb-next&id=d49dad3e11638f66be4e16573ffaa8c46a09e3b3

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1011415

Title:
  [Feature] USB3 Port power off mechanism

Status in intel:
  New
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Raring:
  Fix Released
Status in “linux” source package in Saucy:
  Fix Released

Bug description:
  This is an Intel-specific feature.  When a USB port is powered off, VBUS is
  removed, and port events are lost (device connect & disconnect, remote wake
  from USB device suspend, and overcurrent events).  OEMs may power-gang several
  ports together, so VBUS may not be removed until several ports are powered off.

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