linux/drivers/usb
Linus Torvalds 72932611b4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace bugfixes from Eric Biederman:
 "This is three simple fixes against 3.9-rc1.  I have tested each of
  these fixes and verified they work correctly.

  The userns oops in key_change_session_keyring and the BUG_ON triggered
  by proc_ns_follow_link were found by Dave Jones.

  I am including the enhancement for mount to only trigger requests of
  filesystem modules here instead of delaying this for the 3.10 merge
  window because it is both trivial and the kind of change that tends to
  bit-rot if left untouched for two months."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  proc: Use nd_jump_link in proc_ns_follow_link
  fs: Limit sys_mount to only request filesystem modules (Part 2).
  fs: Limit sys_mount to only request filesystem modules.
  userns: Stop oopsing in key_change_session_keyring
2013-03-09 16:51:13 -08:00
..
atm
c67x00 USB: c67x00-ll-hpi.c: signedness bug in ll_recv_msg() 2013-01-18 15:49:00 -08:00
chipidea Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-22 19:25:09 -08:00
class Merge 3.8-rc5 into tty-next 2013-01-25 13:27:36 -08:00
core ACPI / glue: Add .match() callback to struct acpi_bus_type 2013-03-04 14:23:40 +01:00
dwc3 drivers/usb: add missing GENERIC_HARDIRQS dependencies 2013-02-08 12:16:12 -08:00
early fix build of EHCI debug port code when USB_CHIPIDEA but !USB_EHCI_HCD 2012-11-02 10:13:33 -07:00
gadget fs: Limit sys_mount to only request filesystem modules. 2013-03-03 19:36:31 -08:00
host USB patch revert for 3.9-rc1 2013-03-03 10:24:57 -08:00
image
misc USB: altsetting overrides for usbtest 2013-01-31 10:09:19 +01:00
mon
musb USB patches for 3.9-rc1 2013-02-21 12:20:00 -08:00
otg USB patches for 3.9-rc1 2013-02-21 12:20:00 -08:00
phy arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
renesas_usbhs USB patches for 3.9-rc1 2013-02-21 12:20:00 -08:00
serial tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
storage USB: usb-storage: unusual_devs update for Super TOP SATA bridge 2013-02-14 09:22:02 -08:00
wusbcore USB: wusbcore/wa-xfer: error handling fixes in setup_segs() 2013-02-06 11:38:14 -08:00
Kconfig USB: select USB_ARCH_HAS_EHCI for MXS 2013-01-11 16:01:06 -08:00
Makefile
README
usb-common.c
usb-skeleton.c USB: usb-skeleton.c: fix compilation error and restored kref_put on fail in skel_open 2012-10-24 14:40:50 -07:00

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.