linux/drivers/usb
Greg Kroah-Hartman c7b0c3bbe4 usb: fixes for v5.0-rc4
Dwc3 got a fix for cases when gadget driver queue an OUT request of
 length 0; this is a case that has been overlooked for quite some time
 now.
 
 Exynos' dwc3 glue layer got a fix on the error path for those cases
 where clk_prepare_enable() fails.
 
 TI's AM335x PHY driver got a fix for a race condition during
 probe. This race happened because driver was powering off the PHY only
 after adding the PHY handle to the framework. The result is that we
 could fall into a situation where user of the PHY (MUSB) could call
 phy_init() before phy driver's probe() called phy_poweroff() which
 would result in a powered off PHY after phy_init() was called.
 
 The old net2272 driver got a fix for an erroneous use of bitwise
 negation.
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Merge tag 'fixes-for-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v5.0-rc4

Dwc3 got a fix for cases when gadget driver queue an OUT request of
length 0; this is a case that has been overlooked for quite some time
now.

Exynos' dwc3 glue layer got a fix on the error path for those cases
where clk_prepare_enable() fails.

TI's AM335x PHY driver got a fix for a race condition during
probe. This race happened because driver was powering off the PHY only
after adding the PHY handle to the framework. The result is that we
could fall into a situation where user of the PHY (MUSB) could call
phy_init() before phy driver's probe() called phy_poweroff() which
would result in a powered off PHY after phy_init() was called.

The old net2272 driver got a fix for an erroneous use of bitwise
negation.

* tag 'fixes-for-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: phy: am335x: fix race condition in _probe
  usb: dwc3: exynos: Fix error handling of clk_prepare_enable
  usb: phy: fix link errors
  usb: gadget: udc: net2272: Fix bitwise and boolean operations
  usb: dwc3: gadget: Handle 0 xfer length for OUT EP
2019-01-31 08:57:51 +01:00
..
atm USB: atm: fix up some remaining DEVICE_ATTR() usage 2018-01-24 08:49:52 +01:00
c67x00 USB: add SPDX identifiers to all remaining Makefiles 2017-11-07 15:53:48 +01:00
chipidea usb: chipidea: fix static checker warning for NULL pointer 2019-01-18 09:35:33 +01:00
class usb: cdc-acm: send ZLP for Telit 3G Intel based modems 2019-01-07 17:23:29 +01:00
common usb: roles: Add a description for the class to Kconfig 2018-12-17 14:07:59 +01:00
core USB: leds: fix regression in usbport led trigger 2019-01-18 09:55:05 +01:00
dwc2 usb: dwc2: gadget: Fix Remote Wakeup interrupt bit clearing 2019-01-17 15:56:53 +02:00
dwc3 usb: dwc3: exynos: Fix error handling of clk_prepare_enable 2019-01-28 15:31:11 +02:00
early drivers: usb: early: clean up indentation, remove extraneous tabs 2018-11-23 16:13:14 +01:00
gadget usb: gadget: udc: net2272: Fix bitwise and boolean operations 2019-01-28 15:27:21 +02:00
host USB: EHCI: ehci-mv: add MODULE_DEVICE_TABLE 2019-01-18 10:07:05 +01:00
image scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
isp1760 usb: isp1760: remove redundant variable 'selector' 2018-07-13 15:41:56 +02:00
misc Merge 4.20-rc6 into usb-next 2018-12-10 10:19:08 +01:00
mon USB: mon: use ktime_get_real_ts64 instead of getnstimeofday64 2018-06-25 21:58:26 +08:00
mtu3 usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler 2018-12-07 07:58:28 +02:00
musb usb: gadget: musb: fix short isoc packets with inventra dma 2019-01-30 15:48:10 +01:00
phy usb: phy: am335x: fix race condition in _probe 2019-01-28 15:31:43 +02:00
renesas_usbhs usb: renesas_usbhs: add support for RZ/G2E 2018-12-17 14:07:59 +01:00
roles usb: roles: Add a description for the class to Kconfig 2018-12-17 14:07:59 +01:00
serial USB: serial: keyspan_usa: add proper SPDX lines for .h files 2019-01-18 11:09:32 +01:00
storage USB: storage: add quirk for SMI SM3350 2019-01-07 17:23:30 +01:00
typec USB/PHY patches for 4.21-rc1 2018-12-28 20:30:00 -08:00
usbip USB: usbip: delete README file 2019-01-18 09:35:33 +01:00
wusbcore crypto: drop mask=CRYPTO_ALG_ASYNC from 'cipher' tfm allocations 2018-11-20 14:26:55 +08:00
Kconfig usb: roles: Add a description for the class to Kconfig 2018-12-17 14:07:59 +01:00
Makefile usb: roles: Add Intel xHCI USB role switch driver 2018-03-22 13:49:27 +01:00
README
usb-skeleton.c usb: usb-skeleton: use irqsave() in USB's complete callback 2018-06-28 19:36:06 +09:00

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.