OpenCloudOS-Kernel/drivers/usb
Stephen Boyd 3d755dcc20 usb: dwc3: Remove impossible check for of_clk_get_parent_count() < 0
The check for < 0 is impossible now that
of_clk_get_parent_count() returns an unsigned int. Simplify the
code and update the types.

Acked-by: Felipe Balbi <balbi@kernel.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-02-26 16:01:32 -08:00
..
atm USB: atm: cxacru: fix blank line after declaration 2015-07-22 14:55:22 -07:00
c67x00 c67x00-hcd: use USB_DT_HUB 2015-04-03 19:03:16 +02:00
chipidea Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-01-20 09:45:43 -08:00
class USB: cdc_acm: Ignore Infineon Flash Loader utility 2015-11-23 10:31:05 +01:00
common usb: of: add an api to get dr_mode by the phy node 2015-12-15 09:12:41 -06:00
core More power management and ACPI updates for v4.5-rc1 2016-01-20 19:06:49 -08:00
dwc2 usb: dwc2: add shutdown callback to platform variant 2015-12-22 12:12:51 -06:00
dwc3 usb: dwc3: Remove impossible check for of_clk_get_parent_count() < 0 2016-02-26 16:01:32 -08:00
early USB: ehci-dbgp: drop dead code. 2013-09-26 16:25:21 -07:00
gadget wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
host ARM: SoC support for Tegra platforms for v4.5 2016-01-22 17:30:52 -08:00
image scsi: Do not set cmd_per_lun to 1 in the host template 2015-05-31 18:06:28 -07:00
isp1760 usb: isp1760: udc: add ep capabilities support 2015-08-04 12:26:55 -05:00
misc USB patches for 4.5-rc1 2016-01-13 09:26:40 -08:00
mon USB: usbmon: remove assignment from IS_ERR argument 2016-01-03 16:55:59 -08:00
musb usb: musb: core: call init and shutdown for the usb phy 2015-12-22 12:05:44 -06:00
phy usb: musb: core: Fix handling of the phy notifications 2015-12-16 10:07:28 -06:00
renesas_usbhs usb: renesas_usbhs: add fallback compatibility strings 2015-12-16 10:53:51 -06:00
serial USB-serial fixes for v4.4-rc8 2016-01-03 15:19:12 -08:00
storage Merge 4.4-rc5 into usb-next as we want those fixes here for testing 2015-12-13 19:20:27 -08:00
usbip usbip: vhci_hcd: at unlink, return -EIDRM if vhci_rx took the urb 2015-10-04 10:59:03 +01:00
wusbcore wusbcore: rh: use USB_DT_HUB 2015-04-03 19:03:15 +02:00
Kconfig usb: isp1760: Move driver from drivers/usb/host/ to drivers/usb/isp1760/ 2015-01-27 09:39:38 -06:00
Makefile usb-host: Remove fusbh200 driver 2015-10-16 23:44:33 -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

README

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.