kernel/linux.git/drivers/usb/core, branch linux-2.6.22.y

USB: mutual exclusion for EHCI init and port resets

2007-11-21T17:25:56+00:00

patch 32fe01985aa2cb2562f6fc171e526e279abe10db in mainline. This patch (as999) fixes a problem that sometimes shows up when host controller driver modules are loaded in the wrong order. If ehci-hcd happens to initialize an EHCI controller while the companion OHCI or UHCI controller is in the middle of a port reset, the reset can fail and the companion may get very confused. The patch adds an rw-semaphore and uses it to keep EHCI initialization and port resets mutually exclusive. Signed-off-by: Alan Stern Acked-by: David Brownell Cc: David Miller Cc: Dely L Sy Signed-off-by: Greg Kroah-Hartman

USB: fix linked list insertion bugfix for usb core

2007-09-26T17:54:37+00:00

commit e5dd01154c1e9ca2400f4682602d1a4fa54c25dd in mainline. This patch fixes the order of list_add_tail() arguments in usb_store_new_id() so the list can have more than one single element. Signed-off-by: Nathael Pajani Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman

usb: add PRODUCT, TYPE to usb-interface events

2007-08-31T06:01:53+00:00

This fixes a regression for userspace programs that were relying on these events. Signed-off-by: Kay Sievers Cc: Andreas Jellinghaus Signed-off-by: Greg Kroah-Hartman

USB: allow retry on descriptor fetch errors

2007-08-31T06:01:52+00:00

This patch (as964) was suggested by Steffen Koepf. It makes usb_get_descriptor() retry on all errors other than ETIMEDOUT, instead of only on EPIPE. This helps with some devices. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman

USB: fix warning caused by autosuspend counter going negative

2007-08-09T21:27:30+00:00

This patch (as937) fixes a minor bug in the autosuspend usage-counting code. Each hub's usage counter keeps track of the number of unsuspended children. However the current driver increments the counter after registering a new child, by which time the child may already have been suspended and caused the counter to go negative. The obvious solution is to increment the counter before registering the child. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman

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