linux_dsm_epyc7002/drivers/usb
Michal Nazarewicz ad1a8102f9 USB: gadget: composite: Better string override handling
The iManufatcurer, iProduct and iSerialNumber composite module
parameters were only used when the gadget driver registers
strings for manufacturer, product and serial number.  If the
gadget never bothered to set corresponding fields in USB device
descriptors those module parameters are ignored.

This commit makes the parameters work even if the strings ID
have not been assigned.  It also changes the way IDs are
overridden -- what IDs are overridden is now saved in
usb_composite_dev structure -- which makes it unnecessary to
modify the string tables the way previous code did.

The commit also adds a iProduct and iManufatcurer fields to the
usb_composite_device structure.  If they are set, appropriate
strings are reserved and added to device descriptor.  This makes
it unnecessary for gadget drivers to maintain code for setting
those.  If iProduct is not set it defaults to
usb_composite_device::name; if iManufatcurer is not set
a default "<system> <release> with <gadget-name>" is used.

The last thing is that if needs_serial field of
usb_composite_device is set and user failed to provided
iSerialNumber parameter a warning is issued.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:23 -07:00
..
atm USB: cxacru: Use a bulk/int URB to access the command endpoint 2010-09-03 17:33:41 -07:00
c67x00 USB: convert usb_hcd bitfields into atomic flags 2010-08-10 14:35:37 -07:00
class USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint descriptors. 2010-09-03 17:33:41 -07:00
core USB: core: update comment to match current function name 2010-10-22 10:21:21 -07:00
early echi-dbgp: Add kernel debugger support for the usb debug port 2010-05-20 21:04:31 -05:00
gadget USB: gadget: composite: Better string override handling 2010-10-22 10:21:23 -07:00
host USB: EHCI: Disable langwell/penwell LPM capability 2010-09-20 16:04:59 -07:00
image USB: BKL removal: mdc800 2010-03-02 14:54:27 -08:00
misc USB: adutux: fix misuse of return value of copy_to_user() 2010-08-23 20:50:17 -07:00
mon USB: resizing usbmon binary interface buffer causes protection faults 2010-08-10 14:35:41 -07:00
musb usb: musb: gadget: restart request on clearing endpoint halt 2010-09-24 11:05:01 -07:00
otg usb: Add Intel Langwell USB OTG Transceiver Driver 2010-10-22 10:21:17 -07:00
serial USB: sam-ba: add driver for Atmel SAM Boot Assistant (SAM-BA) 2010-10-22 10:21:20 -07:00
storage USB: usb-storage: implement autosuspend 2010-08-10 14:35:44 -07:00
wusbcore fix typos concerning "initiali[zs]e" 2010-06-16 18:05:05 +02:00
Kconfig USB: Add JZ4740 OHCI support 2010-08-05 13:26:19 +01:00
Makefile USB: drivers/usb/Makefile: conditionally descend to 'early' 2010-08-10 14:35:38 -07:00
README
usb-skeleton.c USB: usb-skeleton: Remove unnecessary casts of private_data 2010-08-10 14:35:39 -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.