kernel_optimize_test/drivers/usb
Andiry Xu c3e751e4f4 usbcore: enable USB2 LPM if port suspend fails
USB2 LPM is disabled when device begin to suspend and enabled after device
is resumed. That's because USB spec does not define the transition from
U1/U2 state to U3 state.

If usb_port_suspend() fails, usb_port_resume() is never called, and USB2 LPM
is disabled in this situation. Enable USB2 LPM if port suspend fails.

This patch should be backported to kernels as old as 3.2, that contain
the commit 65580b4321 "xHCI: set USB2
hardware LPM".

Signed-off-by: Andiry Xu <andiry.xu@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
2012-05-17 10:36:57 -07:00
..
atm USB: xusbatm.c: remove dbg() usage 2012-05-01 21:33:30 -07:00
c67x00
chipidea usb: chipidea: remove zero check of hw_ep_max 2012-05-15 08:43:40 -07:00
class USB: cdc-wdm: remove from device list on disconnect 2012-05-11 15:19:22 -07:00
core usbcore: enable USB2 LPM if port suspend fails 2012-05-17 10:36:57 -07:00
dwc3 usb: dwc3: Fix the dwc3 dependency 2012-05-11 15:17:31 -07:00
early
gadget usb: gadget: at91_udc: fix endpoint descriptor dereference 2012-05-16 05:29:20 -07:00
host xhci: Add new short TX quirk for Fresco Logic host. 2012-05-17 10:36:57 -07:00
image USB: mdc800.c: remove dbg() usage 2012-05-01 21:33:50 -07:00
misc USB: yurex.c: remove dbg() usage 2012-05-01 21:34:11 -07:00
mon
musb usb: musb: cppi: add missing include to fix compilation 2012-05-14 12:45:45 -07:00
otg USB: gpio_vbus: avoid consecutive vbus_session calls with the same "is_active" 2012-05-14 09:02:23 -07:00
phy USB: Add driver for NXP ISP1301 USB transceiver 2012-05-01 13:33:02 -04:00
renesas_usbhs usb: renesas_usbhs: gadget: add support for set_selfpowered 2012-05-04 15:53:05 +03:00
serial Revert "USB: serial: sierra: put reset_resume callback back." 2012-05-16 08:39:56 -07:00
storage USB: storage: fixed keyword related space issues. 2012-05-17 09:48:29 -07:00
wusbcore
Kconfig usb: move ci13xxx and related code to drivers/usb/chipidea 2012-05-11 16:45:30 -07:00
Makefile usb: move ci13xxx and related code to drivers/usb/chipidea 2012-05-11 16:45:30 -07:00
README
usb-common.c
usb-skeleton.c USB: usb-skeleton.c: remove err() usage 2012-04-27 11:24:45 -07:00

To understand all the Linux-USB framework, you'll use these resources:

    * This source code.  This is necessarily an evolving work, and
      includes kerneldoc that should help you get a current overview.
      ("make pdfdocs", and then look at "usb.pdf" for host side and
      "gadget.pdf" for peripheral side.)  Also, Documentation/usb has
      more information.

    * The USB 2.0 specification (from www.usb.org), with supplements
      such as those for USB OTG and the various device classes.
      The USB specification has a good overview chapter, and USB
      peripherals conform to the widely known "Chapter 9".

    * Chip specifications for USB controllers.  Examples include
      host controllers (on PCs, servers, and more); peripheral
      controllers (in devices with Linux firmware, like printers or
      cell phones); and hard-wired peripherals like Ethernet adapters.

    * Specifications for other protocols implemented by USB peripheral
      functions.  Some are vendor-specific; others are vendor-neutral
      but just standardized outside of the www.usb.org team.

Here is a list of what each subdirectory here is, and what is contained in
them.

core/		- This is for the core USB host code, including the
		  usbfs files and the hub class driver ("khubd").

host/		- This is for USB host controller drivers.  This
		  includes UHCI, OHCI, EHCI, and others that might
		  be used with more specialized "embedded" systems.

gadget/		- This is for USB peripheral controller drivers and
		  the various gadget drivers which talk to them.


Individual USB driver directories.  A new driver should be added to the
first subdirectory in the list below that it fits into.

image/		- This is for still image drivers, like scanners or
		  digital cameras.
../input/	- This is for any driver that uses the input subsystem,
		  like keyboard, mice, touchscreens, tablets, etc.
../media/	- This is for multimedia drivers, like video cameras,
		  radios, and any other drivers that talk to the v4l
		  subsystem.
../net/		- This is for network drivers.
serial/		- This is for USB to serial drivers.
storage/	- This is for USB mass-storage drivers.
class/		- This is for all USB device drivers that do not fit
		  into any of the above categories, and work for a range
		  of USB Class specified devices. 
misc/		- This is for all USB device drivers that do not fit
		  into any of the above categories.