acrn-kernel/drivers/usb
Linus Torvalds b9abaa3fb7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2006-01-07 11:29:51 -08:00
..
atm [PATCH] USB: small cleanups 2006-01-04 13:48:34 -08:00
class Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-01-04 16:34:57 -08:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 2006-01-04 18:44:12 -08:00
gadget [PATCH] USB: Use ARRAY_SIZE macro 2006-01-04 13:51:43 -08:00
host [ARM] Move asm/hardware/clock.h to linux/clk.h 2006-01-07 16:15:52 +00:00
image [PATCH] USB: remove .owner field from struct usb_driver 2006-01-04 13:48:34 -08:00
input Input: add missing keys from input.h to hid-debug.h 2006-01-05 23:00:26 -05:00
media [PATCH] i2c: Drop i2c_driver.{owner,name}, 5 of 11 2006-01-05 22:16:23 -08:00
misc [PATCH] USB: Remove unneeded kmalloc() return value casts 2006-01-04 13:51:43 -08:00
mon [PATCH] USB: Let usbmon collect less garbage 2006-01-04 13:51:41 -08:00
net [PATCH] USB: zd1201: make sysfs device symlink 2006-01-04 13:51:44 -08:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-01-04 16:34:57 -08:00
storage [PATCH] USB Storage: Fix unusual_devs.h order 2006-01-04 13:51:44 -08:00
Kconfig
Makefile [PATCH] USB: drivers/usb/storage/libusual 2006-01-04 13:48:31 -08:00
README
usb-skeleton.c [PATCH] USB: fix usb-skeleton limit resource usage patch. 2006-01-04 13:51:45 -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.