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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 05:34:00 +08:00
linux-next/drivers/usb
Mathias Nyman c11ae038d6 xhci: don't try to reset the host if it is unaccessible
There is no point in trying to reset the host controller by writing
to its registers if host is removed and registers just return 0xffffffff

bail out and return -ENODEV instead

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-14 10:18:21 +01:00
..
atm usb: atm: usbatm: don't print on ENOMEM 2016-08-30 19:17:36 +02:00
c67x00
chipidea usb: chipidea: host: fix NULL ptr dereference during shutdown 2016-10-25 16:14:32 +08:00
class Merge 4.9-rc5 into usb-next 2016-11-14 08:11:29 +01:00
common usb: patches for v4.9 merge window 2016-09-14 20:37:50 +02:00
core USB: core: add missing license information to some files 2016-10-29 12:51:56 -04:00
dwc2 Revert "usb: dwc2: gadget: fix TX FIFO size and address initialization" 2016-10-18 14:21:40 +03:00
dwc3 usb: dwc3: st: add missing <linux/pinctrl/consumer.h> include 2016-10-31 11:14:27 +02:00
early treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
gadget Merge 4.9-rc5 into usb-next 2016-11-14 08:11:29 +01:00
host xhci: don't try to reset the host if it is unaccessible 2016-11-14 10:18:21 +01:00
image usb: microtek: Use "foo *bar" instead of "foo * bar". 2016-06-07 22:18:39 -07:00
isp1760 usb: Convert pr_warning to pr_warn 2016-10-24 14:36:25 +02:00
misc hwrng: chaoskey - drop workaround for old hwrng core limitation 2016-10-24 15:17:51 +02:00
mon usb: core: rename mutex usb_bus_list_lock to usb_bus_idr_lock 2016-02-06 21:55:57 -08:00
mtu3 usb: mtu3: dual-role mode support 2016-10-27 17:02:41 +02:00
musb usb: musb: remove duplicated actions 2016-11-07 10:10:25 +01:00
phy usb: patches for v4.9 merge window 2016-09-14 20:37:50 +02:00
renesas_usbhs usb: renesas_usbhs: add wait after initialization for R-Car Gen3 2016-10-24 14:35:46 +02:00
serial USB: serial: fix potential NULL-dereference at probe 2016-10-21 16:47:17 +02:00
storage usb: storage: drop freezer.h usage 2016-11-07 10:19:49 +01:00
usbip usbip: fix possibility of dereference by NULLL pointer in vhci_hcd.c 2016-11-07 10:19:49 +01:00
wusbcore wusbcore: wusbhc: use permission-specific DEVICE_ATTR variants 2016-11-07 10:19:49 +01:00
Kconfig usb: Add MediaTek USB3 DRD driver 2016-10-27 17:02:41 +02:00
Makefile usb: Add MediaTek USB3 DRD driver 2016-10-27 17:02:41 +02:00
README
usb-skeleton.c usb: usb-skeleton: don't print on ENOMEM 2016-08-30 19:17:39 +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 ("hub_wq").

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.