linux/drivers/usb
Paul Chavent 7bd4b20c87 USB: usbserial: provide ezusb functions for an external module.
When building an external module, the ezusb_* functions are not defined
if we haven't loaded any built'in module that use them (whiteheat,
keyspan, ...).

This patch allow to build those functions even if we only have selected
the usbserial generic driver.

Signed-off-by: Paul Chavent <paul.chavent@fnac.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:03 -08:00
..
atm USB: Spelling fixes 2008-02-01 14:34:57 -08:00
class USB: Spelling fixes 2008-02-01 14:34:57 -08:00
core USB: usbfs: struct async is a fixed size structure 2008-02-01 14:35:02 -08:00
gadget USB: pxa2xx_udc: use debugfs not procfs 2008-02-01 14:35:01 -08:00
host USB: EHCI: add a short delay to the bus_suspend routine 2008-02-01 14:35:03 -08:00
image USB: Drop unnecessary continue in a few drivers 2008-02-01 14:34:51 -08:00
misc USB: misc: legousbtower: semaphore to mutex 2008-02-01 14:35:02 -08:00
mon USB: mon nopage 2008-02-01 14:34:56 -08:00
serial USB: usbserial: provide ezusb functions for an external module. 2008-02-01 14:35:03 -08:00
storage USB: usb/storage/initializers.c: fix signedness difference 2008-02-01 14:34:57 -08:00
Kconfig USB: add ehci-ixp bus glue 2008-02-01 14:35:02 -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.