linux-toradex.git/include/linux/kobject.h, branch v2.6.20.21

kobject: kobject_uevent() returns manageable value

2006-12-20T18:56:44+00:00

Since kobject_uevent() function does not return an integer value to
indicate if its operation was completed with success or not, it is worth
changing it in order to report a proper status (success or error) instead
of returning void.

[randy.dunlap@oracle.com: Fix inline kobject functions]
Cc: Mauricio Lin 
Signed-off-by: Aneesh Kumar K.V 
Signed-off-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

driver core: Introduce device_move(): move a device to a new parent.

2006-12-01T22:52:01+00:00

Provide a function device_move() to move a device to a new parent device. Add
auxilliary functions kobject_move() and sysfs_move_dir().
kobject_move() generates a new uevent of type KOBJ_MOVE, containing the
previous path (DEVPATH_OLD) in addition to the usual values. For this, a new
interface kobject_uevent_env() is created that allows to add further
environmental data to the uevent at the kobject layer.

Signed-off-by: Cornelia Huck 
Acked-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

add __must_check to device management code

2006-09-26T04:08:39+00:00

We're getting a lot of crashes in the sysfs/kobject/device/bus/class code and
they're very hard to diagnose.

I'm suspecting that in some cases this is because drivers aren't checking
return values and aren't handling errors correctly.  So the code blithely
blunders on and crashes later in very obscure ways.

There's just no reason to ignore errors which can and do occur.  So the patch
sprinkles __must_check all over these APIs.

Causes 1,513 new warnings.  Heh.

Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

PCI: docking station: remove dock uevents

2006-08-03T20:20:06+00:00

Remove uevent dock notifications.  There are no consumers
of these events at present, and uevents are likely not the
correct way to send this type of event anyway.

Until I get some kind of idea if anyone in userspace cares
about dock events, I will just not send any.

Signed-off-by: Kristen Carlson Accardi 
Signed-off-by: Greg Kroah-Hartman

KEVENT: add new uevent for dock

2006-06-27T05:24:15+00:00

so that userspace can be notified of dock and undock events.

Signed-off-by: Kristen Carlson Accardi 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Andrew Morton 
Signed-off-by: Len Brown

[PATCH] Driver Core: Add /sys/hypervisor when needed

2006-06-21T19:40:48+00:00

To have a home for all hypervisors, this patch creates /sys/hypervisor.
A new config option SYS_HYPERVISOR is introduced, which should to be set
by architecture dependent hypervisors (e.g. s390 or Xen).

Acked-by: Martin Schwidefsky 
Signed-off-by: Michael Holzheu 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Kobject: possible cleanups

2006-04-27T20:08:56+00:00

This patch contains the following possible cleanups:
- #if 0 the following unused global function:
  - subsys_remove_file()
- remove the following unused EXPORT_SYMBOL's:
  - kset_find_obj
  - subsystem_init
- remove the following unused EXPORT_SYMBOL_GPL:
  - kobject_add_dir

Signed-off-by: Adrian Bunk 
Signed-off-by: Greg Kroah-Hartman

[PATCH] Kobject: fix build error

2006-04-27T20:08:56+00:00

This fixes a build error for various odd combinations of CONFIG_HOTPLUG
and CONFIG_NET.

Signed-off-by: Kay Sievers 
Cc: Nigel Cunningham 
Cc: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

[PATCH] sysfs: Allow sysfs attribute files to be pollable

2006-04-14T18:41:24+00:00

It works like this:
  Open the file
  Read all the contents.
  Call poll requesting POLLERR or POLLPRI (so select/exceptfds works)
  When poll returns,
     close the file and go to top of loop.
   or lseek to start of file and go back to the 'read'.

Events are signaled by an object manager calling
   sysfs_notify(kobj, dir, attr);

If the dir is non-NULL, it is used to find a subdirectory which
contains the attribute (presumably created by sysfs_create_group).

This has a cost of one int  per attribute, one wait_queuehead per kobject,
one int per open file.

The name "sysfs_notify" may be confused with the inotify
functionality.  Maybe it would be nice to support inotify for sysfs
attributes as well?

This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action
to be pollable

Signed-off-by: Neil Brown 
Signed-off-by: Greg Kroah-Hartman

[PATCH] kobject_add_dir

2006-03-20T21:42:59+00:00

Adding kobject_add_dir() function which creates a subdirectory
for a given kobject.

Signed-off-by: Jun'ichi Nomura 
Signed-off-by: Greg Kroah-Hartman