android_kernel_xiaomi_sm8350/drivers/usb
David Brownell d085229938 [PATCH] USB: EHCI unlink tweaks
This patch modifies the behavior of the EHCI driver in an unlink path
that seems to be causing various issues on some systems.  Those problems
have included issues with disconnection, driver unbinding, and similar
cases where urb unlinking would just not work right.

This patch should help avoid those problems by not turning off the async
(control/bulk) schedule until it's not expecting an "async advance" IRQ,
which comes from the processing passing the schedule head.  Whether the
driver attempts to do such things is dependent on system timings, so
many folk would never have seen these problems.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20 14:49:55 -08:00
..
atm [PATCH] UEAGLE : cmv name bug (was cosmetic) 2006-01-31 17:23:41 -08:00
class [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
core [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
gadget [PATCH] USB: Gadget RNDIS fix alloc bug. (buffer overflow) 2006-02-28 12:42:06 -08:00
host [PATCH] USB: EHCI unlink tweaks 2006-03-20 14:49:55 -08:00
image [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
input [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
media [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
misc [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
mon [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
net [PATCH] USB: asix - Add device IDs for 0G0 Cable Ethernet 2006-01-31 17:23:38 -08:00
serial [PATCH] USB Serial: fix use-after-free bug in usb-serial core 2006-03-06 13:29:00 -08:00
storage [PATCH] USB: convert a bunch of USB semaphores to mutexes 2006-03-20 14:49:55 -08:00
Kconfig [PATCH] USB: EHCI for AU1200 2006-03-20 14:49:55 -08:00
Makefile [PATCH] USB: remove OBSOLETE_OSS_USB_DRIVER drivers 2006-03-20 14:49:54 -08:00
README
usb-skeleton.c [PATCH] USB: remove some left over devfs droppings hanging around in the usb drivers 2006-01-31 17:23:41 -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 ("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.