linux/drivers/usb
Linus Torvalds c3823c479e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: (25 commits)
  avr32: Add hardware power-down function call
  avr32: add include/asm-avr32/serial.h
  avr32: don't offer PARPORT_PC
  avr32: don't offer CONFIG_GEN_RTC
  avr32: don't offer CONFIG_RTC
  add include/asm-avr32/xor.h
  avr32: Remove two unused #defines from mm/init.c
  avr32: Implement set_rate(), set_parent() and mode() for pll1
  avr32: Generic clockevents support
  avr32: Move sleep code into mach-at32ap
  avr32: Use constants from sysreg.h in asm.h
  avr32: Delete mostly unused header asm/intc.h
  avr32: start clocksource cleanup
  avr32: pass i2c board info through at32_add_device_twi
  avr32: cleanup - use _AC macro to define PAGE_SIZE
  Generate raw keyboard codes for AVR32 architecture
  atmel_usba_udc: Add support for AT91CAP9 UDPHS
  atmel_usba_udc: Add missing kfree() in usba_udc_remove()
  atmel_usba_udc: move endpoint declarations into platform data.
  atmel_usba_udc: Kill GPIO_PIN_NONE
  ...
2008-04-21 15:44:57 -07:00
..
atm drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
class USB: fix usb open suspend race in cdc-acm 2008-02-21 15:38:49 -08:00
core drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
gadget Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/usba-2.6.26 into base 2008-04-19 20:38:41 -04:00
host Merge branch 'omap2-upstream' into devel 2008-04-19 17:17:29 +01:00
image USB: Drop unnecessary continue in a few drivers 2008-02-01 14:34:51 -08:00
misc drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
mon USB: constify function pointer tables 2008-02-01 14:35:04 -08:00
serial drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
storage USB: support more Huawei data card product IDs 2008-04-15 22:30:52 -07:00
Kconfig USB: add support for SuperH OHCI 2008-02-01 14:35:03 -08:00
Makefile USB: always visit drivers/usb/misc/ 2007-10-12 14:55:26 -07:00
README USB: fix directory references in usb/README 2007-11-28 13:58:34 -08:00
usb-skeleton.c USB: usb-skeleton leaking locks on open 2007-10-12 14:55:26 -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.