linux/drivers/usb
Russell King 4ffb4318b0 DMA-API: usb: ohci-sa1111: add a note about DMA masks
Add a comment to explain why this driver doesn't call any of the DMA
API dma_set_mask() functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-31 14:48:44 +00:00
..
atm usb: atm: speedtch: be careful with bInterval 2013-07-25 11:49:30 -07:00
c67x00 USB: c67x00: use dev_get_platdata() 2013-07-31 17:28:44 -07:00
chipidea USB: chipidea: i.MX: simplify usbmisc 2013-08-14 12:37:20 -07:00
class USB: usbtmc: fix up attribute permissions 2013-08-25 15:12:03 -07:00
core usbcore: fix incorrect type in assignment in descriptors_changed() 2013-08-30 18:50:43 -07:00
dwc3 Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
early fix build of EHCI debug port code when USB_CHIPIDEA but !USB_EHCI_HCD 2012-11-02 10:13:33 -07:00
gadget Merge git://git.kvack.org/~bcrl/aio-next 2013-09-13 10:55:58 -07:00
host DMA-API: usb: ohci-sa1111: add a note about DMA masks 2013-10-31 14:48:44 +00:00
image USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
misc Merge 3.11-rc6 into usb-next 2013-08-18 20:33:01 -07:00
mon USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
musb Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
phy usb: phy-tegra-usb: use platform_{get,set}_drvdata() 2013-08-30 11:11:35 -07:00
renesas_usbhs Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
serial Driver core patches for 3.12-rc1 2013-09-03 11:37:15 -07:00
storage USB storage: audit sysfs attribute permissions 2013-08-27 13:13:07 -07:00
wusbcore Merge 3.11-rc6 into usb-next 2013-08-18 20:33:01 -07:00
Kconfig usb: Move definition of USB_EHCI_BIG_ENDIAN_MMIO et al. out side of the ifs. 2013-08-12 12:18:38 -07:00
Makefile usb: patches for v3.12 merge window 2013-08-13 15:28:01 -07:00
README
usb-common.c usb: common: introduce of_usb_get_maximum_speed() 2013-07-29 13:56:46 +03:00
usb-skeleton.c USB: usb-skeleton.c: add retry for nonblocking read 2013-07-25 12:01:13 -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.