tmp_suning_uos_patched/drivers/usb
Ian Abbott 224654004c [PATCH] USB serial ftdi_sio: Prevent userspace DoS
This patch limits the amount of outstanding 'write' data that can be
queued up for the ftdi_sio driver, to prevent userspace DoS attacks (or
simple accidents) that use up all the system memory by writing lots of
data to the serial port.

The original patch was by Guillaume Autran, who in turn based it on the
same mechanism implemented in the 'visor' driver.  I (Ian Abbott)
re-targeted the patch to the latest sources, fixed a couple of errors,
renamed his new structure members, and updated the implementations of
the 'write_room' and 'chars_in_buffer' methods to take account of the
number of outstanding 'write' bytes.  It seems to work fine, though at
low baud rates it is still possible to queue up an amount of data that
takes an age to shift (a job for another day!).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-07-12 16:03:22 -07:00
..
atm [PATCH] USBATM: remove no-longer needed #include 2006-06-21 15:04:09 -07:00
class [PATCH] USB: update for acm in quirks and debug 2006-07-12 16:03:21 -07:00
core [PATCH] usbcore: fixes for hub_port_resume 2006-07-12 16:03:22 -07:00
gadget [ARM] Fix lh7a40x_udc.c 2006-07-03 15:32:47 +01:00
host [PATCH] USB: OHCI hub code unaligned access 2006-07-12 16:03:21 -07:00
image [SCSI] fix up request buffer reference in various scsi drivers 2006-06-06 11:07:25 -04:00
input Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
misc [PATCH] USB: rename Cypress CY7C63xxx driver to proper name and fix up some tiny things 2006-07-12 16:03:21 -07:00
mon [PATCH] USB: implement error event in usbmon 2006-06-21 15:04:17 -07:00
net Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
serial [PATCH] USB serial ftdi_sio: Prevent userspace DoS 2006-07-12 16:03:22 -07:00
storage [PATCH] USB Storage: Uname in PR/SC Unneeded message 2006-07-12 16:03:22 -07:00
Kconfig [PATCH] USB: ohci bits for the cirrus ep93xx 2006-07-12 16:03:20 -07:00
Makefile [PATCH] USB: rename Cypress CY7C63xxx driver to proper name and fix up some tiny things 2006-07-12 16:03:21 -07:00
README
usb-skeleton.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00

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.