linux/drivers/usb
Mian Yousaf Kaukab f71b5e2533 usb: dwc2: gadget: fix zero length packet transfers
According to programming guide, zero length packet should be
programmed on its own and should not be counted in DIEPTSIZ.PktCnt
with other packets.

For ep0, this is the zlp for DATA IN stage (if required) and not for
the STATUS stage.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-12 15:34:08 -06:00
..
atm usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
c67x00 usb: c67x00: drop owner assignment from platform_drivers 2014-10-20 16:21:46 +02:00
chipidea Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
class USB: cdc-acm: check for valid interfaces 2014-11-24 17:21:42 -08:00
common usb: move the OTG state from the USB PHY to the OTG structure 2014-11-03 10:01:25 -06:00
core More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
dwc2 usb: dwc2: gadget: fix zero length packet transfers 2015-01-12 15:34:08 -06:00
dwc3 usb: dwc3: Remove current_trb as it is unused 2015-01-12 12:13:24 -06:00
early
gadget usb: gadget: mv_udc_core: delete pullup operation at .udc_start 2015-01-12 12:24:29 -06:00
host PM: Eliminate CONFIG_PM_RUNTIME 2014-12-19 22:55:06 +01:00
image USB: image: correct spelling mistake in comment 2014-01-08 15:08:14 -08:00
misc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
mon
musb Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
phy usb: phy: generic: add vbus support 2015-01-12 12:13:29 -06:00
renesas_usbhs usb: renesas_usbhs: fix platform init error message 2015-01-12 12:13:27 -06:00
serial USB patches for 3.19-rc1 2014-12-14 14:57:16 -08:00
storage More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
usbip Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
wusbcore wusb: replace memset by memzero_explicit 2014-12-02 16:15:02 -08:00
Kconfig usb: Add LED triggers for USB activity 2014-09-25 17:05:12 +02:00
Makefile usbip: move usbip kernel code out of staging 2014-08-25 10:40:06 -07:00
README usb: hub: rename khubd to hub_wq in documentation and comments 2014-09-23 22:33:19 -07:00
usb-skeleton.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00

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.