tmp_suning_uos_patched/drivers/usb
Alan Stern 01c6460f96 USB: usbfs: add USBDEVFS_URB_BULK_CONTINUATION flag
This patch (as1283) adds a new flag, USBDEVFS_URB_BULK_CONTINUATION,
to usbfs.  It is intended for userspace libraries such as libusb and
openusb.  When they have to break up a single usbfs bulk transfer into
multiple URBs, they will set the flag on all but the first URB of the
series.

If an error other than an unlink occurs, the kernel will automatically
cancel all the following URBs for the same endpoint and refuse to
accept new submissions, until an URB is encountered that is not marked
as a BULK_CONTINUATION.  Such an URB would indicate the start of a new
transfer or the presence of an older library, so the kernel returns to
normal operation.

This enables libraries to delimit bulk transfers correctly, even in
the presence of early termination as indicated by short packets.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-23 06:46:39 -07:00
..
atm firmware: atm/ueagle-atm: prepare for FIRMWARE_NAME_MAX removal 2009-06-15 21:30:24 -07:00
c67x00
class USB: usbtmc: correct termination condition for reads. 2009-09-23 06:46:35 -07:00
core USB: usbfs: add USBDEVFS_URB_BULK_CONTINUATION flag 2009-09-23 06:46:39 -07:00
early USB: ehci-dbgp: errata for EHCI debug/host controller synchronization 2009-09-23 06:46:38 -07:00
gadget USB: gadget: double free_irq() in at91udc_probe() 2009-09-23 06:46:37 -07:00
host USB: ehci-dbgp,ehci: Allow dbpg to work with suspend/resume 2009-09-23 06:46:39 -07:00
image USB: remove unneeded printks from microtek driver 2009-09-23 06:46:34 -07:00
misc USB: full autosuspend and power management support for usbsevseg 2009-09-23 06:46:28 -07:00
mon USB: usbmon: end ugly tricks with DMA peeking 2009-09-23 06:46:19 -07:00
musb USB: musb: fix put_device() call sequence 2009-09-23 06:46:33 -07:00
otg USB: OMAP: ISP1301: Compile fix 2009-09-23 06:46:37 -07:00
serial USB: support for autosuspend in sierra while online 2009-09-23 06:46:39 -07:00
storage USB: unusual_devs.h: drop some unneeded floppy entries 2009-09-23 06:46:38 -07:00
wusbcore trivial: fix typos "man[ae]g?ment" -> "management" 2009-09-21 15:14:56 +02:00
Kconfig USB: at91: Add USB EHCI driver for at91sam9g45 series 2009-09-23 06:46:30 -07:00
Makefile USB: ehci,dbgp,early_printk: split ehci debug driver from early_printk.c 2009-09-23 06:46:38 -07:00
README
usb-skeleton.c USB: skeleton: Use dev_info instead of info 2009-03-24 16:20:30 -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.