linux

History

Jeff Garzik f230d1010a [PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt} parport_ieee1284_interrupt() was not using its first arg at all. Delete. parport_generic_irq()'s second arg makes its first arg completely redundant. Delete, and use port->irq in the one place where we actually need it. Also, s/__inline__/inline/ to make the code look nicer. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>		2007-10-23 19:53:15 -04:00
..
atm	signedness: module_param_array nump argument	2007-10-14 12:41:52 -07:00
class	Add missing newlines to some uses of dev_<level> messages	2007-10-18 14:37:28 -07:00
core	[PATCH] Fix breakage after SG cleanups	2007-10-23 12:02:39 -07:00
gadget	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
host	Fix misspellings of "system", "controller", "interrupt" and "necessary".	2007-10-19 23:10:43 +02:00
image	[SG] Update drivers to use sg helpers	2007-10-22 21:19:53 +02:00
misc	[PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt}	2007-10-23 19:53:15 -04:00
mon	Slab API: remove useless ctor parameter and reorder parameters	2007-10-17 08:42:45 -07:00
serial	typo fixes	2007-10-20 01:34:40 +02:00
storage	[SG] Update drivers to use sg helpers	2007-10-22 21:19:53 +02:00
Kconfig	usb: Enable hcd support on SH unconditionally.	2007-08-22 14:27:45 -07:00
Makefile	USB: always visit drivers/usb/misc/	2007-10-12 14:55:26 -07:00
README
usb-skeleton.c	USB: usb-skeleton leaking locks on open	2007-10-12 14:55:26 -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.