linux/drivers/usb
Thomas Pugliese 4659a2452b usb: wusbcore: adjust iterator correctly when searching for ep comp descriptor
If the endpoint companion descriptor is not the first descriptor in the
extra descriptor buffer of a usb_host_endpoint, the loop in
rpipe_epc_find will get its buffer pointer and remaining size values out
of sync.  The buffer ptr 'itr' is advanced by the descriptor's bLength
field but the remaining size value 'itr_size' is decremented by the
bDescriptorType field which is incorrect.  This patch fixes the loop to
decrement itr_size by bLength as it should.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 16:14:48 -08:00
..
atm usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
c67x00 USB: c67x00: correct spelling mistakes in comments 2014-01-08 15:05:14 -08:00
chipidea usb: chipidea: Propagate the real error code on platform_get_irq() failure 2014-02-24 17:07:53 -08:00
class usb: cdc-wdm: resp_count can be 0 even if WDM_READ is set 2014-01-12 20:13:28 -08:00
core USB: complain if userspace resets an active endpoint 2014-02-24 17:07:53 -08:00
dwc2 usb: dwc2: fix dereference before NULL check 2014-02-15 12:26:14 -08:00
dwc3 Merge 3.13-rc5 into usb-next 2013-12-24 10:18:03 -08:00
early USB: ehci-dbgp: drop dead code. 2013-09-26 16:25:21 -07:00
gadget Merge 3.14-rc4 into usb-next 2014-02-24 15:59:22 -08:00
host Merge 3.14-rc4 into usb-next 2014-02-24 15:59:22 -08:00
image USB: image: correct spelling mistake in comment 2014-01-08 15:08:14 -08:00
misc usb/misc/usbled: Add Riso Kagaku Webmail Notifier 2014-02-11 14:00:16 -08:00
mon USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
musb usb: musb: correct use of schedule_delayed_work() 2014-02-20 09:17:24 -06:00
phy Merge 3.14-rc4 into usb-next 2014-02-24 15:59:22 -08:00
renesas_usbhs usb: changes for v3.14 merge window 2014-01-03 12:15:10 -08:00
serial USB: serial: option: blacklist interface 4 for Cinterion PHS8 and PXS8 2014-02-18 12:04:41 -08:00
storage usb-storage: enable multi-LUN scanning when needed 2014-02-04 12:59:15 -08:00
wusbcore usb: wusbcore: adjust iterator correctly when searching for ep comp descriptor 2014-02-28 16:14:48 -08:00
Kconfig usb: host: remove USB_ARCH_HAS_?HCI 2014-02-18 12:36:38 -08:00
Makefile Move DWC2 driver out of staging 2014-01-13 14:44:01 -08:00
README
usb-common.c usb: common: introduce of_usb_get_maximum_speed() 2013-07-29 13:56:46 +03:00
usb-skeleton.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00

README

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.