linux-stable/drivers/usb
Takeyoshi Kikuchi 72a472d2f9 usb: musb: cppi41: fix condition to call cppi41_trans_done().
connect AR9271(USB wifi) to AM335x, and send a flood ping from Mac OSX,
AR9271 is stopped.

on USB bus, the following occurs.

 - OUT transaction is ACKed (NYET).
 - IN transaction is ACKed (512bytes).
 - PING-NAK transaction is continued for about 2 seconds (AR9271 timeout?).

In current imprementation, IN-transaction is not completed because it
checks the empty of TX-FIFO in cppi41_dma_callback().
As a result, communication to AR9271 stops.

This patch modified to check the empty of TX-FIFO only when OUT-transaction.

Signed-off-by: Takeyoshi Kikuchi <kikuchi@centurysys.co.jp>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 11:34:37 -05:00
..
atm
c67x00 usb: c67x00: drop owner assignment from platform_drivers 2014-10-20 16:21:46 +02:00
chipidea usb: patches for v3.20 merge window 2015-02-04 11:03:20 -08:00
class cdc-acm: Add support for Denso cradle CU-321 2015-02-24 08:38:47 -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 USB: usbfs: don't leak kernel data in siginfo 2015-02-24 08:38:46 -08:00
dwc2 usb: move definition of PCI_VENDOR_ID_SYNOPSYS to linux/pci_ids.h 2015-03-10 15:33:23 -05:00
dwc3 usb: dwc3: make LPM configurable in DT 2015-03-10 15:33:33 -05:00
early
gadget usb: gadget: f_hid: remove unnecessary usb_ep_dequeue() 2015-03-11 10:19:38 -05:00
host xhci: Workaround for PME stuck issues in Intel xhci 2015-03-06 09:47:48 -08:00
image USB: use %*ph specifier in mikrotek driver 2015-01-09 11:37:18 -08:00
isp1760 usb: isp1760: add peripheral/device controller chip id 2015-03-10 15:33:24 -05:00
misc USB: use %*ph specifier in uss720 driver 2015-01-09 11:37:18 -08:00
mon
musb usb: musb: cppi41: fix condition to call cppi41_trans_done(). 2015-03-11 11:34:37 -05:00
phy usb: phy: phy-generic: No need to call gpiod_direction_output() twice 2015-03-11 10:19:38 -05:00
renesas_usbhs usb: renesas: fix extcon dependency 2015-02-23 09:14:33 -06:00
serial USB fixes for 4.0-rc3 2015-03-08 12:47:18 -07:00
storage usb-storage: support for more than 8 LUNs 2015-02-24 08:38:46 -08:00
usbip usbip: vhci_hcd: use HUB_CHAR_* 2015-01-25 21:02:33 +08:00
wusbcore USB patches for 3.20-rc1 2015-02-15 10:24:55 -08:00
Kconfig usb: isp1760: Move driver from drivers/usb/host/ to drivers/usb/isp1760/ 2015-01-27 09:39:38 -06:00
Makefile usb: isp1760: Move driver from drivers/usb/host/ to drivers/usb/isp1760/ 2015-01-27 09:39:38 -06:00
README usb: hub: rename khubd to hub_wq in documentation and comments 2014-09-23 22:33:19 -07:00
usb-skeleton.c

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.