linux/drivers/usb
Pete Zaitcev b507cc9710 USB: fix usb-serial generic recursive lock
Nobody should be using the generic usb-serial for anything other than
testing. Still, it's not a good thing that it's easy to lock up. There
is a traceback from NMI oopser here:
 https://bugzilla.redhat.com/show_bug.cgi?id=431379

But in short, if a line discipline has a chance to echo anything, input
can loop back a write method. So, don't call tty_flip_buffer_push from
under a lock taken on write path.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-10 16:42:25 -07:00
..
atm USB: Use menuconfig objects 2008-02-01 14:35:06 -08:00
class USB: fix usb open suspend race in cdc-acm 2008-02-21 15:38:49 -08:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 2008-03-04 16:37:35 -08:00
gadget USB: remove incorrect struct class_device from the printer gadget 2008-03-04 14:57:44 -08:00
host USB: isp116x: fix enumeration on boot 2008-03-04 14:57:43 -08:00
image USB: Drop unnecessary continue in a few drivers 2008-02-01 14:34:51 -08:00
misc USB: add new vernier product id to ldusb.c 2008-02-21 15:38:53 -08:00
mon USB: constify function pointer tables 2008-02-01 14:35:04 -08:00
serial USB: fix usb-serial generic recursive lock 2008-03-10 16:42:25 -07:00
storage usb-storage: update earlier scatter-gather bug fix 2008-03-04 14:57:43 -08:00
Kconfig USB: add support for SuperH OHCI 2008-02-01 14:35:03 -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.