linux/drivers/usb
Linus Torvalds 83626b0127 Revert "[PATCH] usb: drivers/usb/core/devio.c dereferences a userspace pointer"
This reverts commit 786dc1d3d7.

As Al so eloquently points out, the patch is crap. The old code was fine,
the new code was bogus.

It never dereferenced a user pointer, the "->" operator was to an array
member, which gives the _address_ of the member (in user space), not an
actual dereference at all.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-24 17:47:09 -07:00
..
atm [PATCH] USBATM: remove no-longer needed #include 2006-06-21 15:04:09 -07:00
class [PATCH] USB: move <linux/usb_cdc.h> to <linux/usb/cdc.h> 2006-06-21 15:04:18 -07:00
core Revert "[PATCH] usb: drivers/usb/core/devio.c dereferences a userspace pointer" 2006-06-24 17:47:09 -07:00
gadget [PATCH] Kill PF_SYNCWRITE flag 2006-06-23 17:10:39 +02:00
host [PATCH] clean up default value of USB_ISP116X_HCD, USB_SL811_HCD and USB_SL811_CS 2006-06-23 07:43:04 -07:00
image [SCSI] fix up request buffer reference in various scsi drivers 2006-06-06 11:07:25 -04:00
input [PATCH] USB: move <linux/usb_input.h> to <linux/usb/input.h> 2006-06-21 15:04:18 -07:00
misc [PATCH] USB: new driver for Cypress CY7C63xxx mirco controllers 2006-06-21 15:04:17 -07:00
mon [PATCH] USB: implement error event in usbmon 2006-06-21 15:04:17 -07:00
net [PATCH] USB: move <linux/usb_cdc.h> to <linux/usb/cdc.h> 2006-06-21 15:04:18 -07:00
serial [PATCH] usbserial: Fixes wrong return values. 2006-06-21 15:04:18 -07:00
storage [PATCH] USB: move <linux/usb_input.h> to <linux/usb/input.h> 2006-06-21 15:04:18 -07:00
Kconfig V4L/DVB (3599a): Move drivers/usb/media to drivers/media/video 2006-03-25 09:29:04 -03:00
Makefile [PATCH] USB: new driver for Cypress CY7C63xxx mirco controllers 2006-06-21 15:04:17 -07:00
README
usb-skeleton.c [PATCH] USB: remove some left over devfs droppings hanging around in the usb drivers 2006-01-31 17:23:41 -08:00

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.