linux_dsm_epyc7002/drivers/usb
Jason Wessel aab2d4086a USB: ehci-dbgp: errata for EHCI debug controller initialization
On some EHCI usb debug controllers, the EHCI debug device will fail to
be seen after a port reset, after a warm reset.  Two options exist to
get the device to initialize correctly.

Option 1 is to unplug and plug in the device.

Option 2 is to use the EHCI port test to get the usb debug device to
start talking again.  At that point the debug controller port reset
will succeed.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
CC: dbrownell@users.sourceforge.net
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-23 06:46:38 -07:00
..
atm firmware: atm/ueagle-atm: prepare for FIRMWARE_NAME_MAX removal 2009-06-15 21:30:24 -07:00
c67x00 usb/c67x00 endianness annotations 2008-06-04 08:06:01 -07:00
class USB: usbtmc: correct termination condition for reads. 2009-09-23 06:46:35 -07:00
core USB: Clean up root hub string descriptors 2009-09-23 06:46:37 -07:00
early USB: ehci-dbgp: errata for EHCI debug controller initialization 2009-09-23 06:46:38 -07:00
gadget USB: gadget: double free_irq() in at91udc_probe() 2009-09-23 06:46:37 -07:00
host USB: ehci-dbgp,ehci: Allow early or late use of the dbgp device 2009-09-23 06:46:38 -07:00
image USB: remove unneeded printks from microtek driver 2009-09-23 06:46:34 -07:00
misc USB: full autosuspend and power management support for usbsevseg 2009-09-23 06:46:28 -07:00
mon USB: usbmon: end ugly tricks with DMA peeking 2009-09-23 06:46:19 -07:00
musb USB: musb: fix put_device() call sequence 2009-09-23 06:46:33 -07:00
otg USB: OMAP: ISP1301: Compile fix 2009-09-23 06:46:37 -07:00
serial USB-serial: pl2303: use 1.5 instead of 2 stop bits with 5 data bits 2009-09-23 06:46:37 -07:00
storage USB: unusual_devs.h: drop some unneeded floppy entries 2009-09-23 06:46:38 -07:00
wusbcore trivial: fix typos "man[ae]g?ment" -> "management" 2009-09-21 15:14:56 +02:00
Kconfig USB: at91: Add USB EHCI driver for at91sam9g45 series 2009-09-23 06:46:30 -07:00
Makefile USB: ehci,dbgp,early_printk: split ehci debug driver from early_printk.c 2009-09-23 06:46:38 -07:00
README USB: fix directory references in usb/README 2007-11-28 13:58:34 -08:00
usb-skeleton.c USB: skeleton: Use dev_info instead of info 2009-03-24 16:20:30 -07:00

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.