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linux-next/drivers/usb
Bjørn Mork 9983d6dc4e usb: cdc-wdm: ignore speed change notifications
The only notification supported by the Device Management class is
Response Available. But this driver is also used as a subdriver of
other CDC classes, allowing notifications like Speed Change and
Network Connection. This results in log messages which are only
confusing to an end user:

 [66255.801874] cdc_mbim 1-3:1.5: unknown notification 42 received: index 5 len 8

These drivers use cdc-wdm as a subdriver to allow access to an
embedded management protocol, and all management is expected to
use this protocol. There is therefore no need to handle any of
these optional CDC notifications. Instead we can let the cdc-wdm
driver recognize them and log a debug level message instead of an
error.

Reported-by: Rob Gardner <robmatic@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29 17:02:41 -07:00
..
atm usbatm: Fix dynamic_debug / ratelimited atm_dbg and atm_rldbg macros 2013-10-29 16:50:52 -07:00
c67x00 USB: c67x00: use dev_get_platdata() 2013-07-31 17:28:44 -07:00
chipidea usb: chipidea: host: more enhancement when ci->hcd is NULL 2013-10-29 16:43:37 -07:00
class usb: cdc-wdm: ignore speed change notifications 2013-10-29 17:02:41 -07:00
core USB: change dev_warn about missing reset-resume to dev_dbg 2013-10-19 14:10:16 -07:00
dwc3 usb: patches for v3.13 2013-10-24 16:18:40 +01:00
early USB: ehci-dbgp: drop dead code. 2013-09-26 16:25:21 -07:00
gadget usb/gadget: f_mass_storage: use string literal as format in dev_set_name 2013-10-25 09:12:14 +01:00
host usb: wusbcore: add a quirk for Alereon HWA device isoc behavior 2013-10-29 16:44:49 -07:00
image USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
misc usb: usbtest: support bos descriptor test for usb 3.0 2013-10-29 16:48:53 -07:00
mon USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
musb usb: patches for v3.13 2013-10-24 16:18:40 +01:00
phy USB: phy: samsung: Support multiple PHYs of same type 2013-10-29 16:46:48 -07:00
renesas_usbhs Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
serial USB:add new zte 3g-dongle's pid to option.c 2013-10-25 06:37:25 +01:00
storage usb-storage: add quirk for mandatory READ_CAPACITY_16 2013-10-16 13:32:04 -07:00
wusbcore usb: wusbcore: change WA_SEGS_MAX to a legal value 2013-10-29 16:44:49 -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

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.