linux-stable/drivers/usb
Jesper Juhl 6fd19f4b55 [PATCH] usb: kfree() cleanups in drivers/usb/core/devio.c
Checking for NULL before calling kfree() is redundant. This patch removes
these redundant checks and also makes a few tiny whitespace changes.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-18 17:39:33 -07:00
..
atm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
class Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
core [PATCH] usb: kfree() cleanups in drivers/usb/core/devio.c 2005-04-18 17:39:33 -07:00
gadget [PATCH] USB: fix up remaining pm_message_t usages 2005-04-18 17:39:24 -07:00
host [PATCH] USB: OHCI on Compaq Aramada 7400 2005-04-18 17:39:30 -07:00
image [PATCH] kill old EH constants 2005-04-16 20:14:52 -05:00
input [PATCH] usb suspend updates (interface suspend) 2005-04-18 17:39:22 -07:00
media Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
misc [PATCH] USB: new SIS device id 2005-04-18 17:39:28 -07:00
mon Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
net [PATCH] USB: usbnet and zaurus zl-5600 2005-04-18 17:39:29 -07:00
serial [PATCH] USB: pl2303 new vendor/model ids 2005-04-18 17:39:32 -07:00
storage [PATCH] USB Storage unusual_dev.h 07c4:a10b Datafab Systems, Inc. 2005-04-18 17:39:28 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
README Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
usb-skeleton.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -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.