linux.git/drivers/usb/core, branch v2.6.22

USB: Fix up bogus bInterval values in endpoint descriptors

2007-06-08T23:24:31+00:00

This patch (as904) adds code to check for endpoint descriptor bInterval
values outside the legal limits.  Illegal values are set to 32 ms, which
seems like a reasonable default.

This fixes Bugzilla #8432.

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

USB: set default y for CONFIG_USB_DEVICE_CLASS

2007-06-08T23:24:29+00:00

Signed-off-by: Kay Sievers 
Cc: bert hubert 
Signed-off-by: Greg Kroah-Hartman

USB: replace flush_workqueue with cancel_sync_work

2007-05-29T20:39:07+00:00

This patch (as912) replaces a couple of calls to flush_workqueue()
with cancel_sync_work() and cancel_rearming_delayed_work().  Using a
more directed approach allows us to avoid some nasty deadlocks.  The
prime example occurs when a first-level device (the parent is a root
hub) is removed while at the same time the root hub gets a remote
wakeup request.  khubd would try to flush the autosuspend workqueue
while holding the root-hub's lock, and the remote-wakeup workqueue
routine would be waiting to lock the root hub.

The patch also reorganizes the power management portion of
usb_disconnect(), separating it out into its own routine.  The
autosuspend workqueue entry is cancelled immediately instead of
waiting for the device's release routine.  In addition,
synchronization with the autosuspend thread is carried out even for
root hubs (an oversight in the original code).

Signed-off-by: Alan Stern 
Cc: Andrew Morton 
Cc: Greg KH 
Cc: Mark Lord 
Signed-off-by: Linus Torvalds

USB: fix ratelimit call semantics

2007-05-23T06:45:50+00:00

This patch (as910) fixes a ratelimit modification so that the
original error-handling path will be followed even when the log-rate
limitation kicks in.

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

USB: handle errors in power/level attribute

2007-05-23T06:45:50+00:00

This patch (as906) improves the error handling for the USB power/level
attribute file.  If an error occurs, the original power-level settings
will be restored.

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

USB: make the autosuspend workqueue thread freezable

2007-05-23T06:45:50+00:00

This patch (as881b) makes the ksuspend_usb_wq workqueue freezable.  We
don't want a rogue workqueue thread running around, unexpectedly
suspending or resuming USB devices in the middle of a system sleep
transition.

This fixes Bugzilla #8498.

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

USB: don't try to kzalloc 0 bytes

2007-05-23T06:45:50+00:00

This patch (as907) prevents us from trying to allocate 0 bytes
when an interface has no endpoint descriptors.

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

USB: remove short initial timeout for device descriptor fetch

2007-05-23T06:45:49+00:00

This patch (as905) removes a micro-optimization from the hub port
initialization code.  Previously we had been using a short timeout on
the first attempt the read the device descriptor; now we will use the
standard timeout length.

It's not clear that the short timeout ever provided any benefit.  And
now we know of one case where it actually hurts: The device can't meet
the short timeout and then it gets terminally confused.

This fixes Bugzilla #8444.

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

USB: Deref URB after usbmon is done with it

2007-05-23T06:45:49+00:00

I haven't personally run across an oops because of this, but I feel safer
with this fix in place.

Signed-off-by: Pete Zaitcev 
Signed-off-by: Greg Kroah-Hartman

USB: set the correct Interrupt interval in usb_bulk_msg

2007-05-23T06:45:49+00:00

This patch (as902) fixes a mistake I introduced into usb_bulk_msg().
usb_fill_int_urb() already does the bit-shifting calculation for
high-speed Interrupt intervals; it shouldn't be done twice.

Signed-off-by: Alan Stern