linux/drivers/usb
Rafael J. Wysocki 3494252d56 USB/PCI: Fix resume breakage of controllers behind cardbus bridges
If a USB PCI controller is behind a cardbus bridge, we are trying to
restore its configuration registers too early, before the cardbus
bridge is operational.  To fix this, call pci_restore_state() from
usb_hcd_pci_resume() and remove usb_hcd_pci_resume_early() which is
no longer necessary (the configuration spaces of USB controllers that
are not behind cardbus bridges will be restored by the PCI PM core
with interrupts disabled anyway).

This patch fixes the regression from 2.6.28 tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=12659

[ Side note: the proper long-term fix is probably to just force the
  unplug event at suspend time instead of doing a plug/unplug at resume
  time, but this patch is fine regardless  - Linus ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-17 16:56:31 -08:00
..
atm net: convert more to %pM 2008-10-27 17:47:26 -07:00
c67x00 usb/c67x00 endianness annotations 2008-06-04 08:06:01 -07:00
class USB: cdc-acm.c: remove duplicate lines for MTK gps support 2009-02-09 11:19:47 -08:00
core USB/PCI: Fix resume breakage of controllers behind cardbus bridges 2009-02-17 16:56:31 -08:00
gadget USB: fsl_qe_udc: Fix stalled TX requests bug 2009-02-09 11:19:47 -08:00
host USB/PCI: Fix resume breakage of controllers behind cardbus bridges 2009-02-17 16:56:31 -08:00
image USB: change interface to usb_lock_device_for_reset() 2009-01-07 09:59:52 -08:00
misc USB: remove vernier labpro from ldusb 2009-01-27 16:15:36 -08:00
mon USB: usbmon: Implement compat_ioctl 2009-01-27 16:15:36 -08:00
musb USB: musb: Kconfig fix 2009-01-27 16:15:35 -08:00
otg USB: omap1 ohci buildfix (otg related) 2009-01-27 16:15:32 -08:00
serial USB: option: New mobile broadband modems to be supported 2009-02-09 11:19:48 -08:00
storage USB: Storage: Update unusual_devs entry for Datafab KECF-USB 2009-02-09 11:19:49 -08:00
wusbcore Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-22 19:12:32 +00:00
Kconfig USB: move isp1301_omap to drivers/usb/otg 2009-01-07 10:00:02 -08:00
Makefile USB: Correct Makefile to make isp1760 buildable 2009-02-09 11:19:49 -08:00
README USB: fix directory references in usb/README 2007-11-28 13:58:34 -08:00
usb-skeleton.c USB: remove unnecessary type casting of urb->context 2008-04-24 21:16:55 -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.