linux.git/drivers/usb/core, branch v2.6.29-rc2

drivers/usb/core/hub.c: fix CONFIG_USB_OTG=y build

2009-01-16T00:39:41+00:00

Carry out the PM-routine interface change in the USB OTG pathway.  This
was omitted from the earlier interface-change patch by mistake.

Signed-off-by: Alan Stern 
Cc: Greg KH 
Cc: Russell King 
Cc: Felipe Balbi 
Cc: Tony Lindgren 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

USB: fix minor nit in usbfs checking

2009-01-07T18:00:13+00:00

One minor nit did show up, though.  The patch below
seems to make more sense than the code does without it.

Signed-off-by: Mark Lord 
Signed-off-by: Greg Kroah-Hartman

USB: re-enable interface after driver unbinds

2009-01-07T18:00:13+00:00

This patch (as1197) fixes an error introduced recently.  Since a
significant number of devices can't handle Set-Interface requests, we
no longer call usb_set_interface() when a driver unbinds from an
interface, provided the interface is already in altsetting 0.  However
the interface still does get disabled, and the call to
usb_set_interface() was the only thing re-enabling it.  Since the
interface doesn't get re-enabled, further attempts to use it fail.

So the patch adds a call to usb_enable_interface() when a driver
unbinds and the interface is in altsetting 0.  For this to work
right, the interface's endpoints have to be re-enabled but their
toggles have to be left alone.  Therefore an additional argument is
added to usb_enable_endpoint() and usb_enable_interface(), a flag
indicating whether or not the endpoint toggles should be reset.

This is a forward-ported version of a patch which fixes Bugzilla
#12301.

Signed-off-by: Alan Stern 
Reported-by: David Roka 
Reported-by: Erik Ekman 
Tested-by: Erik Ekman 
Tested-by: Alon Bar-Lev 
Signed-off-by: Greg Kroah-Hartman

USB: cancel pending Set-Config requests if userspace gets there first

2009-01-07T18:00:12+00:00

This patch (as1195) eliminates a potential problem identified by
Oliver Neukum.  When a driver queues an asynchronous Set-Config
request using usb_driver_set_configuration(), the request should be
cancelled if userspace changes the configuration first.  The patch
introduces a linked list of pending async Set-Config requests, and
uses it to invalidate the requests for a particular device whenever
that device's configuration is set.

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

USB: automatically enable wakeup for PCI host controllers

2009-01-07T18:00:12+00:00

This patch (as1193b) enables wakeup during initialization for all PCI
host controllers, and it removes some code (and comments!) that are no
longer needed now that the PCI core automatically initializes wakeup
settings for all new devices.

The idea is that the bus should initialize wakeup, and the bus glue
or controller driver should enable it.

Signed-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: fix up suspend and resume for PCI host controllers

2009-01-07T18:00:12+00:00

This patch (as1192) rearranges the USB PCI host controller suspend and
resume and resume routines:

	Use pci_wake_from_d3() for enabling and disabling wakeup,
	instead of pci_enable_wake().

	Carry out the actual state change while interrupts are
	disabled.

	Change the order of the preparations to agree with the
	general recommendation for PCI devices, instead of
	messing around with the wakeup settings while the device
	is in D3.

		In .suspend:
			Call the underlying driver to disable IRQ
				generation;
			pci_wake_from_d3(device_may_wakeup());
			pci_disable_device();

		In .suspend_late:
			pci_save_state();
			pci_set_power_state(D3hot);
			(for PPC_PMAC) Disable ASIC clocks

		In .resume_early:
			(for PPC_PMAC) Enable ASIC clocks
			pci_set_power_state(D0);
			pci_restore_state();

		In .resume:
			pci_enable_device();
			pci_set_master();
			pci_wake_from_d3(0);
			Call the underlying driver to reenable IRQ
				generation

	Add the necessary .suspend_late and .resume_early method
	pointers to the PCI host controller drivers.

Signed-off-by: Alan Stern 
CC: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman

USB: extension of anchor API to unpoison an anchor

2009-01-07T18:00:11+00:00

This extension allows unpoisoning an anchor allowing drivers that
resubmit URBs to reuse an anchor for methods like resume()

Signed-off-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: mark "reject" field of struct urb as atomic_t

2009-01-07T18:00:08+00:00

It is enough to protect accesses to reject field of urb
by marking it as atomic_t,also it is the only reason of
existence of usb_reject_lock,so remove the lock to make
code more clean.

Signed-off-by: Ming Lei 
Acked-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: utilize the bus notifiers

2009-01-07T18:00:08+00:00

This patch (as1185) makes usbcore take advantage of the bus
notifications sent out by the driver core.  Now we can create all our
device and interface attribute files before the device or interface
uevent is broadcast.

A side effect is that we no longer create the endpoint "pseudo"
devices at the same time as a device or interface is registered -- it
seems like a bad idea to try registering an endpoint before the
registration of its parent is complete.  So the routines for creating
and removing endpoint devices have been split out and renamed, and
they are called explicitly when needed.  A new bitflag is used for
keeping track of whether or not the interface's endpoint devices have
been created, since (just as with the interface attributes) they vary
with the altsetting and hence can be changed at random times.

Signed-off-by: Alan Stern 
Cc: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

USB: make printk messages more searchable

2009-01-07T18:00:08+00:00

USB: make printk messages more searchable

Make USB printk messages long and straightforward.  One of these
decorated USB error messages cost me non-trivial efforts to locate.

Signed-off-by: Wu Fengguang 
Signed-off-by: Greg Kroah-Hartman