linux.git/drivers/usb/core/usb.h, branch v3.7

usb/acpi: Store info on device removability.

2012-09-10T20:04:01+00:00

In the upcoming USB port power off patches, we need to know whether a
USB port can ever see a disconnect event.  Often USB ports are internal
to a system, and users can't disconnect USB devices from that port.
Sometimes those ports will remain empty, because the OEM chose not to
connect an internal USB device to that port.

According to ACPI Spec 9.13, PLD indicates whether USB port is
user visible and _UPC indicates whether a USB device can be connected to
the USB port (we'll call this "connectible").  Here's a matrix of the
possible combinations:

Visible Connectible
		Name		Example
-------------------------------------------------------------------------

Yes	No	Unknown		(Invalid state.)

Yes	Yes	Hot-plug	USB ports on the outside of a laptop.
				A user could freely connect and disconnect
				USB devices.

No	Yes	Hard-wired	A USB modem hard-wired to a port on the
				inside of a laptop.

No	No	Not used	The port is internal to the system and
				will remain empty.

Represent each of these four states with an enum usb_port_connect_type.
The four states are USB_PORT_CONNECT_TYPE_UNKNOWN,
USB_PORT_CONNECT_TYPE_HOT_PLUG, USB_PORT_CONNECT_TYPE_HARD_WIRED, and
USB_PORT_NOT_USED.  When we get the USB port's acpi_handle, store the
state in connect_type in struct usb_port.

Signed-off-by: Lan Tianyu 
Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

usb/acpi: Bind ACPI node to USB port, not usb_device.

2012-09-10T20:02:02+00:00

In the ACPI DSDT table, only usb root hub and usb ports are ACPI device
nodes.  Originally, we bound the usb port's ACPI node to the usb device
attached to the port.  However, we want to access those ACPI port
methods when the port is empty, and there's no usb_device associated
with that port.

Now that the usb port is a real device, we can bind the port's ACPI node
to struct usb_port instead.

Signed-off-by: Lan Tianyu 
Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

usb: Add quirk detection based on interface information

2012-07-19T22:44:58+00:00

When a whole class of devices (possibly from a specific vendor, or
across multiple vendors) require a quirk, explictly listing all devices
in the class make the quirks table unnecessarily large. Fix this by
allowing matching devices based on interface information.

Signed-off-by: Laurent Pinchart 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

usb: convert port_owners type from void * to struct dev_state *

2012-07-06T18:09:28+00:00

This patch is to convert port_owners type from void * to struct dev_state *
in order to make code more readable.

Acked-by: Alan Stern 
Signed-off-by: Lan Tianyu 
Signed-off-by: Greg Kroah-Hartman

usb: Bind devices to ACPI devices when possible

2012-05-12T00:06:13+00:00

Built-in USB devices will typically have a representation in the system
ACPI tables. Add support for binding the two together so the USB code can
make use of the associated methods.

Signed-off-by: Matthew Garrett 
Signed-off-by: Lan Tianyu 
Signed-off-by: Greg Kroah-Hartman

USB: cleanup the handling of the PM complete call

2012-01-24T22:23:49+00:00

This eliminates the last instance of a function's behavior
controlled by a parameter as Linus hates such things.

Signed-off-by: Oliver Neukum 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: move usb_translate_errors to linux/usb.h

2011-11-15T18:47:40+00:00

Move usb_translate_errors from usb core to linux/usb.h as it is meant to
be accessed from drivers.

Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

xHCI: set USB2 hardware LPM

2011-09-26T22:51:10+00:00

If the device pass the USB2 software LPM and the host supports hardware
LPM, enable hardware LPM for the device to let the host decide when to
put the link into lower power state.

If hardware LPM is enabled for a port and driver wants to put it into
suspend, it must first disable hardware LPM, resume the port into U0,
and then suspend the port.

Signed-off-by: Andiry Xu 
Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

usbcore: get BOS descriptor set

2011-09-26T22:51:08+00:00

This commit gets BOS(Binary Device Object Store) descriptor set for Super
Speed devices and High Speed devices which support BOS descriptor.

BOS descriptor is used to report additional USB device-level capabilities
that are not reported via the Device descriptor. By getting BOS descriptor
set, driver can check device's device-level capability such as LPM
capability.

Signed-off-by: Andiry Xu 
Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

usb: core: Change usb_create_sysfs_intf_files()' return type to void

2011-04-30T00:24:38+00:00

The usb_create_sysfs_intf_files() function always returned zero even
if it failed to create sysfs fails.  Since this is a desired behaviour
there is no need to return return code at all.  This commit changes
function's return type (form int) to void.

Signed-off-by: Michal Nazarewicz 
Cc: Sergey Senozhatsky 
Signed-off-by: Greg Kroah-Hartman